Home / 121,409,096.20-182,113,644.30-85,058,531.80

Finding the Fourth Proportional to 121,409,096.20, 182,113,644.30 and 85,058,531.80

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Solution

The fourth proportional to 121,409,096.20, 182,113,644.30 and 85,058,531.80 is: 127,587,797.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,409,096.20 : 182,113,644.30 = 85,058,531.80 : x
  2. Step 2: Convert to fraction form
    121,409,096.20/182,113,644.30 = 85,058,531.80/x
  3. Step 3: Cross multiply
    121,409,096.20x = 182,113,644.30 × 85,058,531.80
  4. Step 4: Simplify right side
    121,409,096.20x = 15,490,319,204,905,440
  5. Step 5: Solve for x
    x = 15,490,319,204,905,440/121,409,096.20
  6. Step 6: Final answer
    x = 127,587,797.70

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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.