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Finding the Fourth Proportional to 10,658,672.70, 15,988,009.05 and 7,467,402.30

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Solution

The fourth proportional to 10,658,672.70, 15,988,009.05 and 7,467,402.30 is: 11,201,103.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,658,672.70 : 15,988,009.05 = 7,467,402.30 : x
  2. Step 2: Convert to fraction form
    10,658,672.70/15,988,009.05 = 7,467,402.30/x
  3. Step 3: Cross multiply
    10,658,672.70x = 15,988,009.05 × 7,467,402.30
  4. Step 4: Simplify right side
    10,658,672.70x = 119,388,895,552,390.81
  5. Step 5: Solve for x
    x = 119,388,895,552,390.81/10,658,672.70
  6. Step 6: Final answer
    x = 11,201,103.45

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Double scale
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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.