Home / 89,879,857.50-124,119,863.76-84,983,217.12

Finding the Fourth Proportional to 89,879,857.50, 124,119,863.76 and 84,983,217.12

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Solution

The fourth proportional to 89,879,857.50, 124,119,863.76 and 84,983,217.12 is: 117,357,833.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,879,857.50 : 124,119,863.76 = 84,983,217.12 : x
  2. Step 2: Convert to fraction form
    89,879,857.50/124,119,863.76 = 84,983,217.12/x
  3. Step 3: Cross multiply
    89,879,857.50x = 124,119,863.76 × 84,983,217.12
  4. Step 4: Simplify right side
    89,879,857.50x = 10,548,105,330,820,900
  5. Step 5: Solve for x
    x = 10,548,105,330,820,900/89,879,857.50
  6. Step 6: Final answer
    x = 117,357,833.27

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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.