Home / 478,765,991.04-718,276,926-172,060,761.12

Finding the Fourth Proportional to 478,765,991.04, 718,276,926 and 172,060,761.12

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Solution

The fourth proportional to 478,765,991.04, 718,276,926 and 172,060,761.12 is: 258,137,121.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,765,991.04 : 718,276,926 = 172,060,761.12 : x
  2. Step 2: Convert to fraction form
    478,765,991.04/718,276,926 = 172,060,761.12/x
  3. Step 3: Cross multiply
    478,765,991.04x = 718,276,926 × 172,060,761.12
  4. Step 4: Simplify right side
    478,765,991.04x = 123,587,274,582,493,920
  5. Step 5: Solve for x
    x = 123,587,274,582,493,920/478,765,991.04
  6. Step 6: Final answer
    x = 258,137,121.05

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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.