Home / 478,816,555.65-717,642,543.24-338,797,354.20

Finding the Fourth Proportional to 478,816,555.65, 717,642,543.24 and 338,797,354.20

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Solution

The fourth proportional to 478,816,555.65, 717,642,543.24 and 338,797,354.20 is: 507,784,018.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,816,555.65 : 717,642,543.24 = 338,797,354.20 : x
  2. Step 2: Convert to fraction form
    478,816,555.65/717,642,543.24 = 338,797,354.20/x
  3. Step 3: Cross multiply
    478,816,555.65x = 717,642,543.24 × 338,797,354.20
  4. Step 4: Simplify right side
    478,816,555.65x = 243,135,394,911,071,104
  5. Step 5: Solve for x
    x = 243,135,394,911,071,104/478,816,555.65
  6. Step 6: Final answer
    x = 507,784,018.83

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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.