Home / 13,132,733.65-18,128,008.68-7,905,984.89

Finding the Fourth Proportional to 13,132,733.65, 18,128,008.68 and 7,905,984.89

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Solution

The fourth proportional to 13,132,733.65, 18,128,008.68 and 7,905,984.89 is: 10,913,170.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132,733.65 : 18,128,008.68 = 7,905,984.89 : x
  2. Step 2: Convert to fraction form
    13,132,733.65/18,128,008.68 = 7,905,984.89/x
  3. Step 3: Cross multiply
    13,132,733.65x = 18,128,008.68 × 7,905,984.89
  4. Step 4: Simplify right side
    13,132,733.65x = 143,319,762,589,581.34
  5. Step 5: Solve for x
    x = 143,319,762,589,581.34/13,132,733.65
  6. Step 6: Final answer
    x = 10,913,170.59

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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.