Home / 99,794,085.60-149,691,128.40-85,181,426.40

Finding the Fourth Proportional to 99,794,085.60, 149,691,128.40 and 85,181,426.40

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Solution

The fourth proportional to 99,794,085.60, 149,691,128.40 and 85,181,426.40 is: 127,772,139.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,794,085.60 : 149,691,128.40 = 85,181,426.40 : x
  2. Step 2: Convert to fraction form
    99,794,085.60/149,691,128.40 = 85,181,426.40/x
  3. Step 3: Cross multiply
    99,794,085.60x = 149,691,128.40 × 85,181,426.40
  4. Step 4: Simplify right side
    99,794,085.60x = 12,750,903,836,537,552
  5. Step 5: Solve for x
    x = 12,750,903,836,537,552/99,794,085.60
  6. Step 6: Final answer
    x = 127,772,139.60

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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.