Home / 129,164,581.60-193,527,627.60-77,938,962.40

Finding the Fourth Proportional to 129,164,581.60, 193,527,627.60 and 77,938,962.40

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Solution

The fourth proportional to 129,164,581.60, 193,527,627.60 and 77,938,962.40 is: 116,776,149.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,164,581.60 : 193,527,627.60 = 77,938,962.40 : x
  2. Step 2: Convert to fraction form
    129,164,581.60/193,527,627.60 = 77,938,962.40/x
  3. Step 3: Cross multiply
    129,164,581.60x = 193,527,627.60 × 77,938,962.40
  4. Step 4: Simplify right side
    129,164,581.60x = 15,083,342,490,877,602
  5. Step 5: Solve for x
    x = 15,083,342,490,877,602/129,164,581.60
  6. Step 6: Final answer
    x = 116,776,149.50

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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.