Home / 15,021,321.84-20,729,429.28-8,145,802.08

Finding the Fourth Proportional to 15,021,321.84, 20,729,429.28 and 8,145,802.08

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Solution

The fourth proportional to 15,021,321.84, 20,729,429.28 and 8,145,802.08 is: 11,241,209.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,021,321.84 : 20,729,429.28 = 8,145,802.08 : x
  2. Step 2: Convert to fraction form
    15,021,321.84/20,729,429.28 = 8,145,802.08/x
  3. Step 3: Cross multiply
    15,021,321.84x = 20,729,429.28 × 8,145,802.08
  4. Step 4: Simplify right side
    15,021,321.84x = 168,857,828,146,236.91
  5. Step 5: Solve for x
    x = 168,857,828,146,236.91/15,021,321.84
  6. Step 6: Final answer
    x = 11,241,209.66

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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.