Home / 459,781,856.10-689,672,784.15-409,897,260.90

Finding the Fourth Proportional to 459,781,856.10, 689,672,784.15 and 409,897,260.90

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Solution

The fourth proportional to 459,781,856.10, 689,672,784.15 and 409,897,260.90 is: 614,845,891.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,781,856.10 : 689,672,784.15 = 409,897,260.90 : x
  2. Step 2: Convert to fraction form
    459,781,856.10/689,672,784.15 = 409,897,260.90/x
  3. Step 3: Cross multiply
    459,781,856.10x = 689,672,784.15 × 409,897,260.90
  4. Step 4: Simplify right side
    459,781,856.10x = 282,694,985,140,361,920
  5. Step 5: Solve for x
    x = 282,694,985,140,361,920/459,781,856.10
  6. Step 6: Final answer
    x = 614,845,891.35

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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.