Home / 21,320,800.13-31,983,031.55-7,486,569.76

Finding the Fourth Proportional to 21,320,800.13, 31,983,031.55 and 7,486,569.76

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Solution

The fourth proportional to 21,320,800.13, 31,983,031.55 and 7,486,569.76 is: 11,230,497.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,320,800.13 : 31,983,031.55 = 7,486,569.76 : x
  2. Step 2: Convert to fraction form
    21,320,800.13/31,983,031.55 = 7,486,569.76/x
  3. Step 3: Cross multiply
    21,320,800.13x = 31,983,031.55 × 7,486,569.76
  4. Step 4: Simplify right side
    21,320,800.13x = 239,443,196,835,355.94
  5. Step 5: Solve for x
    x = 239,443,196,835,355.94/21,320,800.13
  6. Step 6: Final answer
    x = 11,230,497.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.