Home / 99,854,326.20-149,613,527.70-85,409,628.60

Finding the Fourth Proportional to 99,854,326.20, 149,613,527.70 and 85,409,628.60

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Solution

The fourth proportional to 99,854,326.20, 149,613,527.70 and 85,409,628.60 is: 127,970,778.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,854,326.20 : 149,613,527.70 = 85,409,628.60 : x
  2. Step 2: Convert to fraction form
    99,854,326.20/149,613,527.70 = 85,409,628.60/x
  3. Step 3: Cross multiply
    99,854,326.20x = 149,613,527.70 × 85,409,628.60
  4. Step 4: Simplify right side
    99,854,326.20x = 12,778,435,834,392,810
  5. Step 5: Solve for x
    x = 12,778,435,834,392,810/99,854,326.20
  6. Step 6: Final answer
    x = 127,970,778.24

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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.