Home / 459,781,857.10-689,672,785.65-409,897,261.90

Finding the Fourth Proportional to 459,781,857.10, 689,672,785.65 and 409,897,261.90

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Solution

The fourth proportional to 459,781,857.10, 689,672,785.65 and 409,897,261.90 is: 614,845,892.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,781,857.10 : 689,672,785.65 = 409,897,261.90 : x
  2. Step 2: Convert to fraction form
    459,781,857.10/689,672,785.65 = 409,897,261.90/x
  3. Step 3: Cross multiply
    459,781,857.10x = 689,672,785.65 × 409,897,261.90
  4. Step 4: Simplify right side
    459,781,857.10x = 282,694,986,444,880,576
  5. Step 5: Solve for x
    x = 282,694,986,444,880,576/459,781,857.10
  6. Step 6: Final answer
    x = 614,845,892.85

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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.