Home / 459,815,999.10-689,723,998.65-409,931,403.90

Finding the Fourth Proportional to 459,815,999.10, 689,723,998.65 and 409,931,403.90

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Solution

The fourth proportional to 459,815,999.10, 689,723,998.65 and 409,931,403.90 is: 614,897,105.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,815,999.10 : 689,723,998.65 = 409,931,403.90 : x
  2. Step 2: Convert to fraction form
    459,815,999.10/689,723,998.65 = 409,931,403.90/x
  3. Step 3: Cross multiply
    459,815,999.10x = 689,723,998.65 × 409,931,403.90
  4. Step 4: Simplify right side
    459,815,999.10x = 282,739,527,070,116,192
  5. Step 5: Solve for x
    x = 282,739,527,070,116,192/459,815,999.10
  6. Step 6: Final answer
    x = 614,897,105.85

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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.