Home / 137,730,803.70-206,596,205.55-121,102,605.30

Finding the Fourth Proportional to 137,730,803.70, 206,596,205.55 and 121,102,605.30

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Solution

The fourth proportional to 137,730,803.70, 206,596,205.55 and 121,102,605.30 is: 181,653,907.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,730,803.70 : 206,596,205.55 = 121,102,605.30 : x
  2. Step 2: Convert to fraction form
    137,730,803.70/206,596,205.55 = 121,102,605.30/x
  3. Step 3: Cross multiply
    137,730,803.70x = 206,596,205.55 × 121,102,605.30
  4. Step 4: Simplify right side
    137,730,803.70x = 25,019,338,737,199,320
  5. Step 5: Solve for x
    x = 25,019,338,737,199,320/137,730,803.70
  6. Step 6: Final answer
    x = 181,653,907.95

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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.