Home / 1,259,746,626.10-1,889,619,939.15-398,103,618.10

Finding the Fourth Proportional to 1,259,746,626.10, 1,889,619,939.15 and 398,103,618.10

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Solution

The fourth proportional to 1,259,746,626.10, 1,889,619,939.15 and 398,103,618.10 is: 597,155,427.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,746,626.10 : 1,889,619,939.15 = 398,103,618.10 : x
  2. Step 2: Convert to fraction form
    1,259,746,626.10/1,889,619,939.15 = 398,103,618.10/x
  3. Step 3: Cross multiply
    1,259,746,626.10x = 1,889,619,939.15 × 398,103,618.10
  4. Step 4: Simplify right side
    1,259,746,626.10x = 752,264,534,609,516,928
  5. Step 5: Solve for x
    x = 752,264,534,609,516,928/1,259,746,626.10
  6. Step 6: Final answer
    x = 597,155,427.15

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Half scale
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Double scale
Find fourth proportional to 1,259,746,627.10, 1,889,619,940.65 and 398,103,619.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.