Home / 68,858,641.60-103,263,822.24-20,323,545.28

Finding the Fourth Proportional to 68,858,641.60, 103,263,822.24 and 20,323,545.28

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Solution

The fourth proportional to 68,858,641.60, 103,263,822.24 and 20,323,545.28 is: 30,478,192.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,858,641.60 : 103,263,822.24 = 20,323,545.28 : x
  2. Step 2: Convert to fraction form
    68,858,641.60/103,263,822.24 = 20,323,545.28/x
  3. Step 3: Cross multiply
    68,858,641.60x = 103,263,822.24 × 20,323,545.28
  4. Step 4: Simplify right side
    68,858,641.60x = 2,098,686,967,080,511
  5. Step 5: Solve for x
    x = 2,098,686,967,080,511/68,858,641.60
  6. Step 6: Final answer
    x = 30,478,192.98

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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.