Home / 129,164,443.60-193,527,420.60-77,938,824.40

Finding the Fourth Proportional to 129,164,443.60, 193,527,420.60 and 77,938,824.40

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Solution

The fourth proportional to 129,164,443.60, 193,527,420.60 and 77,938,824.40 is: 116,775,942.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,164,443.60 : 193,527,420.60 = 77,938,824.40 : x
  2. Step 2: Convert to fraction form
    129,164,443.60/193,527,420.60 = 77,938,824.40/x
  3. Step 3: Cross multiply
    129,164,443.60x = 193,527,420.60 × 77,938,824.40
  4. Step 4: Simplify right side
    129,164,443.60x = 15,083,299,650,728,344
  5. Step 5: Solve for x
    x = 15,083,299,650,728,344/129,164,443.60
  6. Step 6: Final answer
    x = 116,775,942.59

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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.