Home / 625,968,049.60-938,196,247.20-319,102,206.40

Finding the Fourth Proportional to 625,968,049.60, 938,196,247.20 and 319,102,206.40

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Solution

The fourth proportional to 625,968,049.60, 938,196,247.20 and 319,102,206.40 is: 478,268,008.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,968,049.60 : 938,196,247.20 = 319,102,206.40 : x
  2. Step 2: Convert to fraction form
    625,968,049.60/938,196,247.20 = 319,102,206.40/x
  3. Step 3: Cross multiply
    625,968,049.60x = 938,196,247.20 × 319,102,206.40
  4. Step 4: Simplify right side
    625,968,049.60x = 299,380,492,517,719,808
  5. Step 5: Solve for x
    x = 299,380,492,517,719,808/625,968,049.60
  6. Step 6: Final answer
    x = 478,268,008.58

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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.