Home / 99,854,526.20-149,613,827.70-85,409,828.60

Finding the Fourth Proportional to 99,854,526.20, 149,613,827.70 and 85,409,828.60

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Solution

The fourth proportional to 99,854,526.20, 149,613,827.70 and 85,409,828.60 is: 127,971,078.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,854,526.20 : 149,613,827.70 = 85,409,828.60 : x
  2. Step 2: Convert to fraction form
    99,854,526.20/149,613,827.70 = 85,409,828.60/x
  3. Step 3: Cross multiply
    99,854,526.20x = 149,613,827.70 × 85,409,828.60
  4. Step 4: Simplify right side
    99,854,526.20x = 12,778,491,380,046,930
  5. Step 5: Solve for x
    x = 12,778,491,380,046,930/99,854,526.20
  6. Step 6: Final answer
    x = 127,971,078.19

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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.