Home / 96,770,307.60-145,155,461.40-85,432,899.60

Finding the Fourth Proportional to 96,770,307.60, 145,155,461.40 and 85,432,899.60

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Solution

The fourth proportional to 96,770,307.60, 145,155,461.40 and 85,432,899.60 is: 128,149,349.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,770,307.60 : 145,155,461.40 = 85,432,899.60 : x
  2. Step 2: Convert to fraction form
    96,770,307.60/145,155,461.40 = 85,432,899.60/x
  3. Step 3: Cross multiply
    96,770,307.60x = 145,155,461.40 × 85,432,899.60
  4. Step 4: Simplify right side
    96,770,307.60x = 12,401,051,960,177,876
  5. Step 5: Solve for x
    x = 12,401,051,960,177,876/96,770,307.60
  6. Step 6: Final answer
    x = 128,149,349.40

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Double scale
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Similar ratio
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1.5x scale

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.