Home / 40,127,929.52-55,376,868.12-21,793,346.24

Finding the Fourth Proportional to 40,127,929.52, 55,376,868.12 and 21,793,346.24

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Solution

The fourth proportional to 40,127,929.52, 55,376,868.12 and 21,793,346.24 is: 30,074,994.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,127,929.52 : 55,376,868.12 = 21,793,346.24 : x
  2. Step 2: Convert to fraction form
    40,127,929.52/55,376,868.12 = 21,793,346.24/x
  3. Step 3: Cross multiply
    40,127,929.52x = 55,376,868.12 × 21,793,346.24
  4. Step 4: Simplify right side
    40,127,929.52x = 1,206,847,260,625,977.75
  5. Step 5: Solve for x
    x = 1,206,847,260,625,977.75/40,127,929.52
  6. Step 6: Final answer
    x = 30,074,994.53

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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.