Home / 12,915,485.46-17,823,369.90-7,114,249.26

Finding the Fourth Proportional to 12,915,485.46, 17,823,369.90 and 7,114,249.26

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Solution

The fourth proportional to 12,915,485.46, 17,823,369.90 and 7,114,249.26 is: 9,817,663.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,915,485.46 : 17,823,369.90 = 7,114,249.26 : x
  2. Step 2: Convert to fraction form
    12,915,485.46/17,823,369.90 = 7,114,249.26/x
  3. Step 3: Cross multiply
    12,915,485.46x = 17,823,369.90 × 7,114,249.26
  4. Step 4: Simplify right side
    12,915,485.46x = 126,799,896,121,781.27
  5. Step 5: Solve for x
    x = 126,799,896,121,781.27/12,915,485.46
  6. Step 6: Final answer
    x = 9,817,663.96

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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.