Home / 71,280,640.64-98,367,324.40-38,685,592.64

Finding the Fourth Proportional to 71,280,640.64, 98,367,324.40 and 38,685,592.64

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Solution

The fourth proportional to 71,280,640.64, 98,367,324.40 and 38,685,592.64 is: 53,386,139.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,280,640.64 : 98,367,324.40 = 38,685,592.64 : x
  2. Step 2: Convert to fraction form
    71,280,640.64/98,367,324.40 = 38,685,592.64/x
  3. Step 3: Cross multiply
    71,280,640.64x = 98,367,324.40 × 38,685,592.64
  4. Step 4: Simplify right side
    71,280,640.64x = 3,805,398,240,825,132.50
  5. Step 5: Solve for x
    x = 3,805,398,240,825,132.50/71,280,640.64
  6. Step 6: Final answer
    x = 53,386,139.72

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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.