Home / 28,161,781.46-38,856,597.45-15,938,638.46

Finding the Fourth Proportional to 28,161,781.46, 38,856,597.45 and 15,938,638.46

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Solution

The fourth proportional to 28,161,781.46, 38,856,597.45 and 15,938,638.46 is: 21,991,551.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,161,781.46 : 38,856,597.45 = 15,938,638.46 : x
  2. Step 2: Convert to fraction form
    28,161,781.46/38,856,597.45 = 15,938,638.46/x
  3. Step 3: Cross multiply
    28,161,781.46x = 38,856,597.45 × 15,938,638.46
  4. Step 4: Simplify right side
    28,161,781.46x = 619,321,258,541,308
  5. Step 5: Solve for x
    x = 619,321,258,541,308/28,161,781.46
  6. Step 6: Final answer
    x = 21,991,551.19

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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.