Home / 310,285,919.40-465,428,879.10-137,579,404.20

Finding the Fourth Proportional to 310,285,919.40, 465,428,879.10 and 137,579,404.20

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Solution

The fourth proportional to 310,285,919.40, 465,428,879.10 and 137,579,404.20 is: 206,369,106.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,285,919.40 : 465,428,879.10 = 137,579,404.20 : x
  2. Step 2: Convert to fraction form
    310,285,919.40/465,428,879.10 = 137,579,404.20/x
  3. Step 3: Cross multiply
    310,285,919.40x = 465,428,879.10 × 137,579,404.20
  4. Step 4: Simplify right side
    310,285,919.40x = 64,033,427,884,051,832
  5. Step 5: Solve for x
    x = 64,033,427,884,051,832/310,285,919.40
  6. Step 6: Final answer
    x = 206,369,106.30

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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.