Home / 99,640,902.10-149,461,353.15-45,893,190.10

Finding the Fourth Proportional to 99,640,902.10, 149,461,353.15 and 45,893,190.10

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Solution

The fourth proportional to 99,640,902.10, 149,461,353.15 and 45,893,190.10 is: 68,839,785.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,640,902.10 : 149,461,353.15 = 45,893,190.10 : x
  2. Step 2: Convert to fraction form
    99,640,902.10/149,461,353.15 = 45,893,190.10/x
  3. Step 3: Cross multiply
    99,640,902.10x = 149,461,353.15 × 45,893,190.10
  4. Step 4: Simplify right side
    99,640,902.10x = 6,859,258,292,716,184
  5. Step 5: Solve for x
    x = 6,859,258,292,716,184/99,640,902.10
  6. Step 6: Final answer
    x = 68,839,785.15

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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.