Home / 12,861,806.70-17,748,641.42-7,635,038.28

Finding the Fourth Proportional to 12,861,806.70, 17,748,641.42 and 7,635,038.28

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Solution

The fourth proportional to 12,861,806.70, 17,748,641.42 and 7,635,038.28 is: 10,535,965.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861,806.70 : 17,748,641.42 = 7,635,038.28 : x
  2. Step 2: Convert to fraction form
    12,861,806.70/17,748,641.42 = 7,635,038.28/x
  3. Step 3: Cross multiply
    12,861,806.70x = 17,748,641.42 × 7,635,038.28
  4. Step 4: Simplify right side
    12,861,806.70x = 135,511,556,659,693.58
  5. Step 5: Solve for x
    x = 135,511,556,659,693.58/12,861,806.70
  6. Step 6: Final answer
    x = 10,535,965.89

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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.