Home / 121,385,087.60-182,077,631.40-80,570,418.80

Finding the Fourth Proportional to 121,385,087.60, 182,077,631.40 and 80,570,418.80

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Solution

The fourth proportional to 121,385,087.60, 182,077,631.40 and 80,570,418.80 is: 120,855,628.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,385,087.60 : 182,077,631.40 = 80,570,418.80 : x
  2. Step 2: Convert to fraction form
    121,385,087.60/182,077,631.40 = 80,570,418.80/x
  3. Step 3: Cross multiply
    121,385,087.60x = 182,077,631.40 × 80,570,418.80
  4. Step 4: Simplify right side
    121,385,087.60x = 14,670,071,016,010,030
  5. Step 5: Solve for x
    x = 14,670,071,016,010,030/121,385,087.60
  6. Step 6: Final answer
    x = 120,855,628.20

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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.