Home / 131,397,549.74-181,329,793.54-72,664,166.66

Finding the Fourth Proportional to 131,397,549.74, 181,329,793.54 and 72,664,166.66

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Solution

The fourth proportional to 131,397,549.74, 181,329,793.54 and 72,664,166.66 is: 100,277,199.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,397,549.74 : 181,329,793.54 = 72,664,166.66 : x
  2. Step 2: Convert to fraction form
    131,397,549.74/181,329,793.54 = 72,664,166.66/x
  3. Step 3: Cross multiply
    131,397,549.74x = 181,329,793.54 × 72,664,166.66
  4. Step 4: Simplify right side
    131,397,549.74x = 13,176,178,338,213,950
  5. Step 5: Solve for x
    x = 13,176,178,338,213,950/131,397,549.74
  6. Step 6: Final answer
    x = 100,277,199.72

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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.