Home / 112,681,002.36-169,890,498.45-111,981,512.28

Finding the Fourth Proportional to 112,681,002.36, 169,890,498.45 and 111,981,512.28

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Solution

The fourth proportional to 112,681,002.36, 169,890,498.45 and 111,981,512.28 is: 168,835,868.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,681,002.36 : 169,890,498.45 = 111,981,512.28 : x
  2. Step 2: Convert to fraction form
    112,681,002.36/169,890,498.45 = 111,981,512.28/x
  3. Step 3: Cross multiply
    112,681,002.36x = 169,890,498.45 × 111,981,512.28
  4. Step 4: Simplify right side
    112,681,002.36x = 19,024,594,938,433,996
  5. Step 5: Solve for x
    x = 19,024,594,938,433,996/112,681,002.36
  6. Step 6: Final answer
    x = 168,835,868.87

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.