Home / 140,290,076.42-193,607,053.23-77,565,013.73

Finding the Fourth Proportional to 140,290,076.42, 193,607,053.23 and 77,565,013.73

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Solution

The fourth proportional to 140,290,076.42, 193,607,053.23 and 77,565,013.73 is: 107,043,449.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,290,076.42 : 193,607,053.23 = 77,565,013.73 : x
  2. Step 2: Convert to fraction form
    140,290,076.42/193,607,053.23 = 77,565,013.73/x
  3. Step 3: Cross multiply
    140,290,076.42x = 193,607,053.23 × 77,565,013.73
  4. Step 4: Simplify right side
    140,290,076.42x = 15,017,133,741,041,754
  5. Step 5: Solve for x
    x = 15,017,133,741,041,754/140,290,076.42
  6. Step 6: Final answer
    x = 107,043,449.72

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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.