Home / 18,140,665.28-25,034,115.84-9,991,903.36

Finding the Fourth Proportional to 18,140,665.28, 25,034,115.84 and 9,991,903.36

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Solution

The fourth proportional to 18,140,665.28, 25,034,115.84 and 9,991,903.36 is: 13,788,825.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,140,665.28 : 25,034,115.84 = 9,991,903.36 : x
  2. Step 2: Convert to fraction form
    18,140,665.28/25,034,115.84 = 9,991,903.36/x
  3. Step 3: Cross multiply
    18,140,665.28x = 25,034,115.84 × 9,991,903.36
  4. Step 4: Simplify right side
    18,140,665.28x = 250,138,466,176,325.22
  5. Step 5: Solve for x
    x = 250,138,466,176,325.22/18,140,665.28
  6. Step 6: Final answer
    x = 13,788,825.40

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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.