Home / 717,502,035.20-990,152,821.02-387,477,174.20

Finding the Fourth Proportional to 717,502,035.20, 990,152,821.02 and 387,477,174.20

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Solution

The fourth proportional to 717,502,035.20, 990,152,821.02 and 387,477,174.20 is: 534,718,507.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,502,035.20 : 990,152,821.02 = 387,477,174.20 : x
  2. Step 2: Convert to fraction form
    717,502,035.20/990,152,821.02 = 387,477,174.20/x
  3. Step 3: Cross multiply
    717,502,035.20x = 990,152,821.02 × 387,477,174.20
  4. Step 4: Simplify right side
    717,502,035.20x = 383,661,617,114,987,968
  5. Step 5: Solve for x
    x = 383,661,617,114,987,968/717,502,035.20
  6. Step 6: Final answer
    x = 534,718,507.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.