Home / 8,749,042.70-13,123,564.05-7,709,780.30

Finding the Fourth Proportional to 8,749,042.70, 13,123,564.05 and 7,709,780.30

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Solution

The fourth proportional to 8,749,042.70, 13,123,564.05 and 7,709,780.30 is: 11,564,670.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749,042.70 : 13,123,564.05 = 7,709,780.30 : x
  2. Step 2: Convert to fraction form
    8,749,042.70/13,123,564.05 = 7,709,780.30/x
  3. Step 3: Cross multiply
    8,749,042.70x = 13,123,564.05 × 7,709,780.30
  4. Step 4: Simplify right side
    8,749,042.70x = 101,179,795,578,478.22
  5. Step 5: Solve for x
    x = 101,179,795,578,478.22/8,749,042.70
  6. Step 6: Final answer
    x = 11,564,670.45

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Similar ratio
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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.