Home / 125,421,880.46-173,043,146.68-72,479,300.55

Finding the Fourth Proportional to 125,421,880.46, 173,043,146.68 and 72,479,300.55

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Solution

The fourth proportional to 125,421,880.46, 173,043,146.68 and 72,479,300.55 is: 99,998,869.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,421,880.46 : 173,043,146.68 = 72,479,300.55 : x
  2. Step 2: Convert to fraction form
    125,421,880.46/173,043,146.68 = 72,479,300.55/x
  3. Step 3: Cross multiply
    125,421,880.46x = 173,043,146.68 × 72,479,300.55
  4. Step 4: Simplify right side
    125,421,880.46x = 12,542,046,236,752,510
  5. Step 5: Solve for x
    x = 12,542,046,236,752,510/125,421,880.46
  6. Step 6: Final answer
    x = 99,998,869.34

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1.5x scale

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.