Home / 157,023,067.20-216,712,172.16-90,068,147.52

Finding the Fourth Proportional to 157,023,067.20, 216,712,172.16 and 90,068,147.52

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Solution

The fourth proportional to 157,023,067.20, 216,712,172.16 and 90,068,147.52 is: 124,305,710.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,023,067.20 : 216,712,172.16 = 90,068,147.52 : x
  2. Step 2: Convert to fraction form
    157,023,067.20/216,712,172.16 = 90,068,147.52/x
  3. Step 3: Cross multiply
    157,023,067.20x = 216,712,172.16 × 90,068,147.52
  4. Step 4: Simplify right side
    157,023,067.20x = 19,518,863,891,486,516
  5. Step 5: Solve for x
    x = 19,518,863,891,486,516/157,023,067.20
  6. Step 6: Final answer
    x = 124,305,710.23

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1.5x scale

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.