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Finding the Fourth Proportional to 63,885,656.80, 95,804,865.60 and 20,756,267.20

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Solution

The fourth proportional to 63,885,656.80, 95,804,865.60 and 20,756,267.20 is: 31,126,726.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,885,656.80 : 95,804,865.60 = 20,756,267.20 : x
  2. Step 2: Convert to fraction form
    63,885,656.80/95,804,865.60 = 20,756,267.20/x
  3. Step 3: Cross multiply
    63,885,656.80x = 95,804,865.60 × 20,756,267.20
  4. Step 4: Simplify right side
    63,885,656.80x = 1,988,551,389,453,688
  5. Step 5: Solve for x
    x = 1,988,551,389,453,688/63,885,656.80
  6. Step 6: Final answer
    x = 31,126,726.86

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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.