Home / 717,764,236.56-990,490,158.06-395,904,958.29

Finding the Fourth Proportional to 717,764,236.56, 990,490,158.06 and 395,904,958.29

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Solution

The fourth proportional to 717,764,236.56, 990,490,158.06 and 395,904,958.29 is: 546,335,335.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,764,236.56 : 990,490,158.06 = 395,904,958.29 : x
  2. Step 2: Convert to fraction form
    717,764,236.56/990,490,158.06 = 395,904,958.29/x
  3. Step 3: Cross multiply
    717,764,236.56x = 990,490,158.06 × 395,904,958.29
  4. Step 4: Simplify right side
    717,764,236.56x = 392,139,964,713,399,808
  5. Step 5: Solve for x
    x = 392,139,964,713,399,808/717,764,236.56
  6. Step 6: Final answer
    x = 546,335,335.11

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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.