Home / 216,641,085.20-324,754,498.20-80,289,904.40

Finding the Fourth Proportional to 216,641,085.20, 324,754,498.20 and 80,289,904.40

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Solution

The fourth proportional to 216,641,085.20, 324,754,498.20 and 80,289,904.40 is: 120,358,091.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,641,085.20 : 324,754,498.20 = 80,289,904.40 : x
  2. Step 2: Convert to fraction form
    216,641,085.20/324,754,498.20 = 80,289,904.40/x
  3. Step 3: Cross multiply
    216,641,085.20x = 324,754,498.20 × 80,289,904.40
  4. Step 4: Simplify right side
    216,641,085.20x = 26,074,507,613,947,972
  5. Step 5: Solve for x
    x = 26,074,507,613,947,972/216,641,085.20
  6. Step 6: Final answer
    x = 120,358,091.77

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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.