Home / 79,713,187.20-119,569,780.80-69,635,491.20

Finding the Fourth Proportional to 79,713,187.20, 119,569,780.80 and 69,635,491.20

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Solution

The fourth proportional to 79,713,187.20, 119,569,780.80 and 69,635,491.20 is: 104,453,236.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,713,187.20 : 119,569,780.80 = 69,635,491.20 : x
  2. Step 2: Convert to fraction form
    79,713,187.20/119,569,780.80 = 69,635,491.20/x
  3. Step 3: Cross multiply
    79,713,187.20x = 119,569,780.80 × 69,635,491.20
  4. Step 4: Simplify right side
    79,713,187.20x = 8,326,300,418,684,329
  5. Step 5: Solve for x
    x = 8,326,300,418,684,329/79,713,187.20
  6. Step 6: Final answer
    x = 104,453,236.80

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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.