Home / 22,128,064.65-30,535,974.90-12,205,340.55

Finding the Fourth Proportional to 22,128,064.65, 30,535,974.90 and 12,205,340.55

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Solution

The fourth proportional to 22,128,064.65, 30,535,974.90 and 12,205,340.55 is: 16,842,953.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,128,064.65 : 30,535,974.90 = 12,205,340.55 : x
  2. Step 2: Convert to fraction form
    22,128,064.65/30,535,974.90 = 12,205,340.55/x
  3. Step 3: Cross multiply
    22,128,064.65x = 30,535,974.90 × 12,205,340.55
  4. Step 4: Simplify right side
    22,128,064.65x = 372,701,972,680,752.19
  5. Step 5: Solve for x
    x = 372,701,972,680,752.19/22,128,064.65
  6. Step 6: Final answer
    x = 16,842,953.89

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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.