Home / 121,409,095.20-182,113,642.80-85,058,530.80

Finding the Fourth Proportional to 121,409,095.20, 182,113,642.80 and 85,058,530.80

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Solution

The fourth proportional to 121,409,095.20, 182,113,642.80 and 85,058,530.80 is: 127,587,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,409,095.20 : 182,113,642.80 = 85,058,530.80 : x
  2. Step 2: Convert to fraction form
    121,409,095.20/182,113,642.80 = 85,058,530.80/x
  3. Step 3: Cross multiply
    121,409,095.20x = 182,113,642.80 × 85,058,530.80
  4. Step 4: Simplify right side
    121,409,095.20x = 15,490,318,895,203,998
  5. Step 5: Solve for x
    x = 15,490,318,895,203,998/121,409,095.20
  6. Step 6: Final answer
    x = 127,587,796.20

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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.