Home / 731,246,178.35-1,009,121,642.43-396,718,683.47

Finding the Fourth Proportional to 731,246,178.35, 1,009,121,642.43 and 396,718,683.47

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Solution

The fourth proportional to 731,246,178.35, 1,009,121,642.43 and 396,718,683.47 is: 547,472,822.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,246,178.35 : 1,009,121,642.43 = 396,718,683.47 : x
  2. Step 2: Convert to fraction form
    731,246,178.35/1,009,121,642.43 = 396,718,683.47/x
  3. Step 3: Cross multiply
    731,246,178.35x = 1,009,121,642.43 × 396,718,683.47
  4. Step 4: Simplify right side
    731,246,178.35x = 400,337,409,445,913,728
  5. Step 5: Solve for x
    x = 400,337,409,445,913,728/731,246,178.35
  6. Step 6: Final answer
    x = 547,472,822.83

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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.