Home / 73,117,823.12-109,023,041.86-71,108,976.08

Finding the Fourth Proportional to 73,117,823.12, 109,023,041.86 and 71,108,976.08

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Solution

The fourth proportional to 73,117,823.12, 109,023,041.86 and 71,108,976.08 is: 106,027,730.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,117,823.12 : 109,023,041.86 = 71,108,976.08 : x
  2. Step 2: Convert to fraction form
    73,117,823.12/109,023,041.86 = 71,108,976.08/x
  3. Step 3: Cross multiply
    73,117,823.12x = 109,023,041.86 × 71,108,976.08
  4. Step 4: Simplify right side
    73,117,823.12x = 7,752,516,875,791,578
  5. Step 5: Solve for x
    x = 7,752,516,875,791,578/73,117,823.12
  6. Step 6: Final answer
    x = 106,027,730.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.