Home / 67,578,835.36-93,259,128.72-65,137,793.44

Finding the Fourth Proportional to 67,578,835.36, 93,259,128.72 and 65,137,793.44

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Solution

The fourth proportional to 67,578,835.36, 93,259,128.72 and 65,137,793.44 is: 89,890,478.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,578,835.36 : 93,259,128.72 = 65,137,793.44 : x
  2. Step 2: Convert to fraction form
    67,578,835.36/93,259,128.72 = 65,137,793.44/x
  3. Step 3: Cross multiply
    67,578,835.36x = 93,259,128.72 × 65,137,793.44
  4. Step 4: Simplify right side
    67,578,835.36x = 6,074,693,862,957,731
  5. Step 5: Solve for x
    x = 6,074,693,862,957,731/67,578,835.36
  6. Step 6: Final answer
    x = 89,890,478.74

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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.