Home / 13,534,352.76-18,678,588.12-7,423,962.24

Finding the Fourth Proportional to 13,534,352.76, 18,678,588.12 and 7,423,962.24

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Solution

The fourth proportional to 13,534,352.76, 18,678,588.12 and 7,423,962.24 is: 10,245,715.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,534,352.76 : 18,678,588.12 = 7,423,962.24 : x
  2. Step 2: Convert to fraction form
    13,534,352.76/18,678,588.12 = 7,423,962.24/x
  3. Step 3: Cross multiply
    13,534,352.76x = 18,678,588.12 × 7,423,962.24
  4. Step 4: Simplify right side
    13,534,352.76x = 138,669,132,899,392.59
  5. Step 5: Solve for x
    x = 138,669,132,899,392.59/13,534,352.76
  6. Step 6: Final answer
    x = 10,245,715.87

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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.