Home / 250,479,824.66-345,650,447.12-138,969,478.71

Finding the Fourth Proportional to 250,479,824.66, 345,650,447.12 and 138,969,478.71

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Solution

The fourth proportional to 250,479,824.66, 345,650,447.12 and 138,969,478.71 is: 191,771,383.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,479,824.66 : 345,650,447.12 = 138,969,478.71 : x
  2. Step 2: Convert to fraction form
    250,479,824.66/345,650,447.12 = 138,969,478.71/x
  3. Step 3: Cross multiply
    250,479,824.66x = 345,650,447.12 × 138,969,478.71
  4. Step 4: Simplify right side
    250,479,824.66x = 48,034,862,452,492,248
  5. Step 5: Solve for x
    x = 48,034,862,452,492,248/250,479,824.66
  6. Step 6: Final answer
    x = 191,771,383.26

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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.