Home / 122,207,868.12-168,650,054.29-66,456,549.20

Finding the Fourth Proportional to 122,207,868.12, 168,650,054.29 and 66,456,549.20

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Solution

The fourth proportional to 122,207,868.12, 168,650,054.29 and 66,456,549.20 is: 91,711,776.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,207,868.12 : 168,650,054.29 = 66,456,549.20 : x
  2. Step 2: Convert to fraction form
    122,207,868.12/168,650,054.29 = 66,456,549.20/x
  3. Step 3: Cross multiply
    122,207,868.12x = 168,650,054.29 × 66,456,549.20
  4. Step 4: Simplify right side
    122,207,868.12x = 11,207,900,630,506,056
  5. Step 5: Solve for x
    x = 11,207,900,630,506,056/122,207,868.12
  6. Step 6: Final answer
    x = 91,711,776.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.