Home / 18,138,624.66-25,030,153.71-9,989,862.66

Finding the Fourth Proportional to 18,138,624.66, 25,030,153.71 and 9,989,862.66

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Solution

The fourth proportional to 18,138,624.66, 25,030,153.71 and 9,989,862.66 is: 13,785,378.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138,624.66 : 25,030,153.71 = 9,989,862.66 : x
  2. Step 2: Convert to fraction form
    18,138,624.66/25,030,153.71 = 9,989,862.66/x
  3. Step 3: Cross multiply
    18,138,624.66x = 25,030,153.71 × 9,989,862.66
  4. Step 4: Simplify right side
    18,138,624.66x = 250,047,797,921,589.47
  5. Step 5: Solve for x
    x = 250,047,797,921,589.47/18,138,624.66
  6. Step 6: Final answer
    x = 13,785,378.03

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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.