Home / 13,443,372.74-18,551,769.44-7,642,154.76

Finding the Fourth Proportional to 13,443,372.74, 18,551,769.44 and 7,642,154.76

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Solution

The fourth proportional to 13,443,372.74, 18,551,769.44 and 7,642,154.76 is: 10,546,125.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443,372.74 : 18,551,769.44 = 7,642,154.76 : x
  2. Step 2: Convert to fraction form
    13,443,372.74/18,551,769.44 = 7,642,154.76/x
  3. Step 3: Cross multiply
    13,443,372.74x = 18,551,769.44 × 7,642,154.76
  4. Step 4: Simplify right side
    13,443,372.74x = 141,775,493,132,318.53
  5. Step 5: Solve for x
    x = 141,775,493,132,318.53/13,443,372.74
  6. Step 6: Final answer
    x = 10,546,125.28

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Double scale
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1.5x scale

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.