Home / 108,220,813.83-149,468,837.49-71,216,293.20

Finding the Fourth Proportional to 108,220,813.83, 149,468,837.49 and 71,216,293.20

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Solution

The fourth proportional to 108,220,813.83, 149,468,837.49 and 71,216,293.20 is: 98,360,159.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,220,813.83 : 149,468,837.49 = 71,216,293.20 : x
  2. Step 2: Convert to fraction form
    108,220,813.83/149,468,837.49 = 71,216,293.20/x
  3. Step 3: Cross multiply
    108,220,813.83x = 149,468,837.49 × 71,216,293.20
  4. Step 4: Simplify right side
    108,220,813.83x = 10,644,616,554,390,486
  5. Step 5: Solve for x
    x = 10,644,616,554,390,486/108,220,813.83
  6. Step 6: Final answer
    x = 98,360,159.91

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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.