Home / 18,712,781.12-25,823,849.76-10,977,955.52

Finding the Fourth Proportional to 18,712,781.12, 25,823,849.76 and 10,977,955.52

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Solution

The fourth proportional to 18,712,781.12, 25,823,849.76 and 10,977,955.52 is: 15,149,702.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712,781.12 : 25,823,849.76 = 10,977,955.52 : x
  2. Step 2: Convert to fraction form
    18,712,781.12/25,823,849.76 = 10,977,955.52/x
  3. Step 3: Cross multiply
    18,712,781.12x = 25,823,849.76 × 10,977,955.52
  4. Step 4: Simplify right side
    18,712,781.12x = 283,493,074,020,442.69
  5. Step 5: Solve for x
    x = 283,493,074,020,442.69/18,712,781.12
  6. Step 6: Final answer
    x = 15,149,702.88

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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.