Home / 13,167,128.34-18,170,663.68-7,366,006.96

Finding the Fourth Proportional to 13,167,128.34, 18,170,663.68 and 7,366,006.96

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Solution

The fourth proportional to 13,167,128.34, 18,170,663.68 and 7,366,006.96 is: 10,165,104.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,167,128.34 : 18,170,663.68 = 7,366,006.96 : x
  2. Step 2: Convert to fraction form
    13,167,128.34/18,170,663.68 = 7,366,006.96/x
  3. Step 3: Cross multiply
    13,167,128.34x = 18,170,663.68 × 7,366,006.96
  4. Step 4: Simplify right side
    13,167,128.34x = 133,845,235,098,480.05
  5. Step 5: Solve for x
    x = 133,845,235,098,480.05/13,167,128.34
  6. Step 6: Final answer
    x = 10,165,104.47

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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.