Home / 56,681,063.91-78,217,352.12-31,564,468.89

Finding the Fourth Proportional to 56,681,063.91, 78,217,352.12 and 31,564,468.89

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Solution

The fourth proportional to 56,681,063.91, 78,217,352.12 and 31,564,468.89 is: 43,557,565.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,681,063.91 : 78,217,352.12 = 31,564,468.89 : x
  2. Step 2: Convert to fraction form
    56,681,063.91/78,217,352.12 = 31,564,468.89/x
  3. Step 3: Cross multiply
    56,681,063.91x = 78,217,352.12 × 31,564,468.89
  4. Step 4: Simplify right side
    56,681,063.91x = 2,468,889,177,649,915.50
  5. Step 5: Solve for x
    x = 2,468,889,177,649,915.50/56,681,063.91
  6. Step 6: Final answer
    x = 43,557,565.92

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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.