Home / 1,146,005,999.70-1,719,008,999.55-409,428,773.70

Finding the Fourth Proportional to 1,146,005,999.70, 1,719,008,999.55 and 409,428,773.70

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Solution

The fourth proportional to 1,146,005,999.70, 1,719,008,999.55 and 409,428,773.70 is: 614,143,160.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146,005,999.70 : 1,719,008,999.55 = 409,428,773.70 : x
  2. Step 2: Convert to fraction form
    1,146,005,999.70/1,719,008,999.55 = 409,428,773.70/x
  3. Step 3: Cross multiply
    1,146,005,999.70x = 1,719,008,999.55 × 409,428,773.70
  4. Step 4: Simplify right side
    1,146,005,999.70x = 703,811,746,665,020,288
  5. Step 5: Solve for x
    x = 703,811,746,665,020,288/1,146,005,999.70
  6. Step 6: Final answer
    x = 614,143,160.55

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Double scale
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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.