Home / 124,557,615.80-186,836,423.70-72,688,974.20

Finding the Fourth Proportional to 124,557,615.80, 186,836,423.70 and 72,688,974.20

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Solution

The fourth proportional to 124,557,615.80, 186,836,423.70 and 72,688,974.20 is: 109,033,461.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,557,615.80 : 186,836,423.70 = 72,688,974.20 : x
  2. Step 2: Convert to fraction form
    124,557,615.80/186,836,423.70 = 72,688,974.20/x
  3. Step 3: Cross multiply
    124,557,615.80x = 186,836,423.70 × 72,688,974.20
  4. Step 4: Simplify right side
    124,557,615.80x = 13,580,947,981,949,568
  5. Step 5: Solve for x
    x = 13,580,947,981,949,568/124,557,615.80
  6. Step 6: Final answer
    x = 109,033,461.30

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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.