Home / 77,947,244.80-116,920,867.20-20,439,404.80

Finding the Fourth Proportional to 77,947,244.80, 116,920,867.20 and 20,439,404.80

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Solution

The fourth proportional to 77,947,244.80, 116,920,867.20 and 20,439,404.80 is: 30,659,107.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,947,244.80 : 116,920,867.20 = 20,439,404.80 : x
  2. Step 2: Convert to fraction form
    77,947,244.80/116,920,867.20 = 20,439,404.80/x
  3. Step 3: Cross multiply
    77,947,244.80x = 116,920,867.20 × 20,439,404.80
  4. Step 4: Simplify right side
    77,947,244.80x = 2,389,792,934,267,842.50
  5. Step 5: Solve for x
    x = 2,389,792,934,267,842.50/77,947,244.80
  6. Step 6: Final answer
    x = 30,659,107.20

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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.