Home / 310,295,909.40-465,443,864.10-137,589,394.20

Finding the Fourth Proportional to 310,295,909.40, 465,443,864.10 and 137,589,394.20

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Solution

The fourth proportional to 310,295,909.40, 465,443,864.10 and 137,589,394.20 is: 206,384,091.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,295,909.40 : 465,443,864.10 = 137,589,394.20 : x
  2. Step 2: Convert to fraction form
    310,295,909.40/465,443,864.10 = 137,589,394.20/x
  3. Step 3: Cross multiply
    310,295,909.40x = 465,443,864.10 × 137,589,394.20
  4. Step 4: Simplify right side
    310,295,909.40x = 64,040,139,295,626,128
  5. Step 5: Solve for x
    x = 64,040,139,295,626,128/310,295,909.40
  6. Step 6: Final answer
    x = 206,384,091.30

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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.