Home / 478,962,049.40-718,443,074.10-206,864,257.40

Finding the Fourth Proportional to 478,962,049.40, 718,443,074.10 and 206,864,257.40

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Solution

The fourth proportional to 478,962,049.40, 718,443,074.10 and 206,864,257.40 is: 310,296,386.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,962,049.40 : 718,443,074.10 = 206,864,257.40 : x
  2. Step 2: Convert to fraction form
    478,962,049.40/718,443,074.10 = 206,864,257.40/x
  3. Step 3: Cross multiply
    478,962,049.40x = 718,443,074.10 × 206,864,257.40
  4. Step 4: Simplify right side
    478,962,049.40x = 148,620,193,007,869,696
  5. Step 5: Solve for x
    x = 148,620,193,007,869,696/478,962,049.40
  6. Step 6: Final answer
    x = 310,296,386.10

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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.