Home / 318,816,006.30-478,224,009.45-290,094,572.70

Finding the Fourth Proportional to 318,816,006.30, 478,224,009.45 and 290,094,572.70

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Solution

The fourth proportional to 318,816,006.30, 478,224,009.45 and 290,094,572.70 is: 435,141,859.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,816,006.30 : 478,224,009.45 = 290,094,572.70 : x
  2. Step 2: Convert to fraction form
    318,816,006.30/478,224,009.45 = 290,094,572.70/x
  3. Step 3: Cross multiply
    318,816,006.30x = 478,224,009.45 × 290,094,572.70
  4. Step 4: Simplify right side
    318,816,006.30x = 138,730,189,676,278,496
  5. Step 5: Solve for x
    x = 138,730,189,676,278,496/318,816,006.30
  6. Step 6: Final answer
    x = 435,141,859.05

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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.