Home / 711,773,398.58-982,236,320.19-398,518,822.62

Finding the Fourth Proportional to 711,773,398.58, 982,236,320.19 and 398,518,822.62

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Solution

The fourth proportional to 711,773,398.58, 982,236,320.19 and 398,518,822.62 is: 549,949,833.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,773,398.58 : 982,236,320.19 = 398,518,822.62 : x
  2. Step 2: Convert to fraction form
    711,773,398.58/982,236,320.19 = 398,518,822.62/x
  3. Step 3: Cross multiply
    711,773,398.58x = 982,236,320.19 × 398,518,822.62
  4. Step 4: Simplify right side
    711,773,398.58x = 391,439,661,856,720,192
  5. Step 5: Solve for x
    x = 391,439,661,856,720,192/711,773,398.58
  6. Step 6: Final answer
    x = 549,949,833.25

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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.