Home / 1,146,006,143.20-1,719,009,214.80-409,428,917.20

Finding the Fourth Proportional to 1,146,006,143.20, 1,719,009,214.80 and 409,428,917.20

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Solution

The fourth proportional to 1,146,006,143.20, 1,719,009,214.80 and 409,428,917.20 is: 614,143,375.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146,006,143.20 : 1,719,009,214.80 = 409,428,917.20 : x
  2. Step 2: Convert to fraction form
    1,146,006,143.20/1,719,009,214.80 = 409,428,917.20/x
  3. Step 3: Cross multiply
    1,146,006,143.20x = 1,719,009,214.80 × 409,428,917.20
  4. Step 4: Simplify right side
    1,146,006,143.20x = 703,812,081,472,386,176
  5. Step 5: Solve for x
    x = 703,812,081,472,386,176/1,146,006,143.20
  6. Step 6: Final answer
    x = 614,143,375.80

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Double scale
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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.