Home / 10,528,862.20-15,769,673.70-8,639,294.20

Finding the Fourth Proportional to 10,528,862.20, 15,769,673.70 and 8,639,294.20

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Solution

The fourth proportional to 10,528,862.20, 15,769,673.70 and 8,639,294.20 is: 12,939,560.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,528,862.20 : 15,769,673.70 = 8,639,294.20 : x
  2. Step 2: Convert to fraction form
    10,528,862.20/15,769,673.70 = 8,639,294.20/x
  3. Step 3: Cross multiply
    10,528,862.20x = 15,769,673.70 × 8,639,294.20
  4. Step 4: Simplify right side
    10,528,862.20x = 136,238,850,532,302.52
  5. Step 5: Solve for x
    x = 136,238,850,532,302.52/10,528,862.20
  6. Step 6: Final answer
    x = 12,939,560.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.