Home / 1,146,006,074.70-1,719,009,112.05-409,428,848.70

Finding the Fourth Proportional to 1,146,006,074.70, 1,719,009,112.05 and 409,428,848.70

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Solution

The fourth proportional to 1,146,006,074.70, 1,719,009,112.05 and 409,428,848.70 is: 614,143,273.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146,006,074.70 : 1,719,009,112.05 = 409,428,848.70 : x
  2. Step 2: Convert to fraction form
    1,146,006,074.70/1,719,009,112.05 = 409,428,848.70/x
  3. Step 3: Cross multiply
    1,146,006,074.70x = 1,719,009,112.05 × 409,428,848.70
  4. Step 4: Simplify right side
    1,146,006,074.70x = 703,811,921,651,440,768
  5. Step 5: Solve for x
    x = 703,811,921,651,440,768/1,146,006,074.70
  6. Step 6: Final answer
    x = 614,143,273.05

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Half scale
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Double scale
Find fourth proportional to 1,146,006,075.70, 1,719,009,113.55 and 409,428,849.70
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.