Home / 131,111,529.28-180,932,877.60-76,112,499.52

Finding the Fourth Proportional to 131,111,529.28, 180,932,877.60 and 76,112,499.52

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Solution

The fourth proportional to 131,111,529.28, 180,932,877.60 and 76,112,499.52 is: 105,034,649.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,111,529.28 : 180,932,877.60 = 76,112,499.52 : x
  2. Step 2: Convert to fraction form
    131,111,529.28/180,932,877.60 = 76,112,499.52/x
  3. Step 3: Cross multiply
    131,111,529.28x = 180,932,877.60 × 76,112,499.52
  4. Step 4: Simplify right side
    131,111,529.28x = 13,771,253,559,482,218
  5. Step 5: Solve for x
    x = 13,771,253,559,482,218/131,111,529.28
  6. Step 6: Final answer
    x = 105,034,649.78

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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.