Home / 131,477,801.32-181,497,481.41-78,573,177.82

Finding the Fourth Proportional to 131,477,801.32, 181,497,481.41 and 78,573,177.82

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Solution

The fourth proportional to 131,477,801.32, 181,497,481.41 and 78,573,177.82 is: 108,465,716.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,477,801.32 : 181,497,481.41 = 78,573,177.82 : x
  2. Step 2: Convert to fraction form
    131,477,801.32/181,497,481.41 = 78,573,177.82/x
  3. Step 3: Cross multiply
    131,477,801.32x = 181,497,481.41 × 78,573,177.82
  4. Step 4: Simplify right side
    131,477,801.32x = 14,260,833,880,710,072
  5. Step 5: Solve for x
    x = 14,260,833,880,710,072/131,477,801.32
  6. Step 6: Final answer
    x = 108,465,716.17

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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.