Home / 21,281,624.04-29,368,730.85-11,989,305.56

Finding the Fourth Proportional to 21,281,624.04, 29,368,730.85 and 11,989,305.56

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Solution

The fourth proportional to 21,281,624.04, 29,368,730.85 and 11,989,305.56 is: 16,545,292.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,281,624.04 : 29,368,730.85 = 11,989,305.56 : x
  2. Step 2: Convert to fraction form
    21,281,624.04/29,368,730.85 = 11,989,305.56/x
  3. Step 3: Cross multiply
    21,281,624.04x = 29,368,730.85 × 11,989,305.56
  4. Step 4: Simplify right side
    21,281,624.04x = 352,110,688,143,470.38
  5. Step 5: Solve for x
    x = 352,110,688,143,470.38/21,281,624.04
  6. Step 6: Final answer
    x = 16,545,292.20

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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.