Home / 124,428,138.20-186,642,207.30-98,730,013.40

Finding the Fourth Proportional to 124,428,138.20, 186,642,207.30 and 98,730,013.40

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Solution

The fourth proportional to 124,428,138.20, 186,642,207.30 and 98,730,013.40 is: 148,095,020.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,428,138.20 : 186,642,207.30 = 98,730,013.40 : x
  2. Step 2: Convert to fraction form
    124,428,138.20/186,642,207.30 = 98,730,013.40/x
  3. Step 3: Cross multiply
    124,428,138.20x = 186,642,207.30 × 98,730,013.40
  4. Step 4: Simplify right side
    124,428,138.20x = 18,427,187,627,734,580
  5. Step 5: Solve for x
    x = 18,427,187,627,734,580/124,428,138.20
  6. Step 6: Final answer
    x = 148,095,020.10

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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.