Home / 39,040,311.71-53,875,635.28-21,637,780.45

Finding the Fourth Proportional to 39,040,311.71, 53,875,635.28 and 21,637,780.45

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Solution

The fourth proportional to 39,040,311.71, 53,875,635.28 and 21,637,780.45 is: 29,860,139.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,040,311.71 : 53,875,635.28 = 21,637,780.45 : x
  2. Step 2: Convert to fraction form
    39,040,311.71/53,875,635.28 = 21,637,780.45/x
  3. Step 3: Cross multiply
    39,040,311.71x = 53,875,635.28 × 21,637,780.45
  4. Step 4: Simplify right side
    39,040,311.71x = 1,165,749,167,604,131
  5. Step 5: Solve for x
    x = 1,165,749,167,604,131/39,040,311.71
  6. Step 6: Final answer
    x = 29,860,139.85

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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.