Home / 9,139,849.20-12,612,721.28-5,009,792.04

Finding the Fourth Proportional to 9,139,849.20, 12,612,721.28 and 5,009,792.04

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Solution

The fourth proportional to 9,139,849.20, 12,612,721.28 and 5,009,792.04 is: 6,913,364.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139,849.20 : 12,612,721.28 = 5,009,792.04 : x
  2. Step 2: Convert to fraction form
    9,139,849.20/12,612,721.28 = 5,009,792.04/x
  3. Step 3: Cross multiply
    9,139,849.20x = 12,612,721.28 × 5,009,792.04
  4. Step 4: Simplify right side
    9,139,849.20x = 63,187,110,671,282.61
  5. Step 5: Solve for x
    x = 63,187,110,671,282.61/9,139,849.20
  6. Step 6: Final answer
    x = 6,913,364.68

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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.