Home / 479,015,195.40-661,037,119.29-278,090,713.44

Finding the Fourth Proportional to 479,015,195.40, 661,037,119.29 and 278,090,713.44

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Solution

The fourth proportional to 479,015,195.40, 661,037,119.29 and 278,090,713.44 is: 383,762,949.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,015,195.40 : 661,037,119.29 = 278,090,713.44 : x
  2. Step 2: Convert to fraction form
    479,015,195.40/661,037,119.29 = 278,090,713.44/x
  3. Step 3: Cross multiply
    479,015,195.40x = 661,037,119.29 × 278,090,713.44
  4. Step 4: Simplify right side
    479,015,195.40x = 183,828,284,113,678,464
  5. Step 5: Solve for x
    x = 183,828,284,113,678,464/479,015,195.40
  6. Step 6: Final answer
    x = 383,762,949.23

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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.