Home / 28,763,938.11-39,694,190.22-15,711,197.16

Finding the Fourth Proportional to 28,763,938.11, 39,694,190.22 and 15,711,197.16

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Solution

The fourth proportional to 28,763,938.11, 39,694,190.22 and 15,711,197.16 is: 21,681,427.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,763,938.11 : 39,694,190.22 = 15,711,197.16 : x
  2. Step 2: Convert to fraction form
    28,763,938.11/39,694,190.22 = 15,711,197.16/x
  3. Step 3: Cross multiply
    28,763,938.11x = 39,694,190.22 × 15,711,197.16
  4. Step 4: Simplify right side
    28,763,938.11x = 623,643,248,652,963.75
  5. Step 5: Solve for x
    x = 623,643,248,652,963.75/28,763,938.11
  6. Step 6: Final answer
    x = 21,681,427.84

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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.