Home / 21,177,966.60-31,780,388.15-9,047,521.29

Finding the Fourth Proportional to 21,177,966.60, 31,780,388.15 and 9,047,521.29

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Solution

The fourth proportional to 21,177,966.60, 31,780,388.15 and 9,047,521.29 is: 13,577,022.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,177,966.60 : 31,780,388.15 = 9,047,521.29 : x
  2. Step 2: Convert to fraction form
    21,177,966.60/31,780,388.15 = 9,047,521.29/x
  3. Step 3: Cross multiply
    21,177,966.60x = 31,780,388.15 × 9,047,521.29
  4. Step 4: Simplify right side
    21,177,966.60x = 287,533,738,391,588.69
  5. Step 5: Solve for x
    x = 287,533,738,391,588.69/21,177,966.60
  6. Step 6: Final answer
    x = 13,577,022.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.