Home / 154,806,660.87-213,585,097.52-87,814,578.02

Finding the Fourth Proportional to 154,806,660.87, 213,585,097.52 and 87,814,578.02

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Solution

The fourth proportional to 154,806,660.87, 213,585,097.52 and 87,814,578.02 is: 121,156,835.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,806,660.87 : 213,585,097.52 = 87,814,578.02 : x
  2. Step 2: Convert to fraction form
    154,806,660.87/213,585,097.52 = 87,814,578.02/x
  3. Step 3: Cross multiply
    154,806,660.87x = 213,585,097.52 × 87,814,578.02
  4. Step 4: Simplify right side
    154,806,660.87x = 18,755,885,209,011,424
  5. Step 5: Solve for x
    x = 18,755,885,209,011,424/154,806,660.87
  6. Step 6: Final answer
    x = 121,156,835.91

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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.