Home / 120,292,067.04-166,004,645.04-65,288,582.88

Finding the Fourth Proportional to 120,292,067.04, 166,004,645.04 and 65,288,582.88

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Solution

The fourth proportional to 120,292,067.04, 166,004,645.04 and 65,288,582.88 is: 90,099,108.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,292,067.04 : 166,004,645.04 = 65,288,582.88 : x
  2. Step 2: Convert to fraction form
    120,292,067.04/166,004,645.04 = 65,288,582.88/x
  3. Step 3: Cross multiply
    120,292,067.04x = 166,004,645.04 × 65,288,582.88
  4. Step 4: Simplify right side
    120,292,067.04x = 10,838,208,026,159,020
  5. Step 5: Solve for x
    x = 10,838,208,026,159,020/120,292,067.04
  6. Step 6: Final answer
    x = 90,099,108.72

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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.