Home / 80,888,919.30-121,333,378.95-67,436,819.00

Finding the Fourth Proportional to 80,888,919.30, 121,333,378.95 and 67,436,819.00

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Solution

The fourth proportional to 80,888,919.30, 121,333,378.95 and 67,436,819.00 is: 101,155,228.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,888,919.30 : 121,333,378.95 = 67,436,819.00 : x
  2. Step 2: Convert to fraction form
    80,888,919.30/121,333,378.95 = 67,436,819.00/x
  3. Step 3: Cross multiply
    80,888,919.30x = 121,333,378.95 × 67,436,819.00
  4. Step 4: Simplify right side
    80,888,919.30x = 8,182,337,114,302,894
  5. Step 5: Solve for x
    x = 8,182,337,114,302,894/80,888,919.30
  6. Step 6: Final answer
    x = 101,155,228.49

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1.5x scale

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.