Home / 510,954,307.92-766,420,458.68-142,479,441.20

Finding the Fourth Proportional to 510,954,307.92, 766,420,458.68 and 142,479,441.20

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Solution

The fourth proportional to 510,954,307.92, 766,420,458.68 and 142,479,441.20 is: 213,716,093.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,954,307.92 : 766,420,458.68 = 142,479,441.20 : x
  2. Step 2: Convert to fraction form
    510,954,307.92/766,420,458.68 = 142,479,441.20/x
  3. Step 3: Cross multiply
    510,954,307.92x = 766,420,458.68 × 142,479,441.20
  4. Step 4: Simplify right side
    510,954,307.92x = 109,199,158,676,974,080
  5. Step 5: Solve for x
    x = 109,199,158,676,974,080/510,954,307.92
  6. Step 6: Final answer
    x = 213,716,093.56

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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.