Home / 129,503,840.80-194,255,761.20-65,006,586.40

Finding the Fourth Proportional to 129,503,840.80, 194,255,761.20 and 65,006,586.40

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Solution

The fourth proportional to 129,503,840.80, 194,255,761.20 and 65,006,586.40 is: 97,509,879.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,503,840.80 : 194,255,761.20 = 65,006,586.40 : x
  2. Step 2: Convert to fraction form
    129,503,840.80/194,255,761.20 = 65,006,586.40/x
  3. Step 3: Cross multiply
    129,503,840.80x = 194,255,761.20 × 65,006,586.40
  4. Step 4: Simplify right side
    129,503,840.80x = 12,627,903,924,145,566
  5. Step 5: Solve for x
    x = 12,627,903,924,145,566/129,503,840.80
  6. Step 6: Final answer
    x = 97,509,879.60

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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.