Home / 31,120,508.81-68,506,948.13

Finding the Third Proportional to 31,120,508.81 and 68,506,948.13

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Solution

The third proportional to 31,120,508.81 and 68,506,948.13 is: 150,807,365.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,120,508.81 : 68,506,948.13 = 68,506,948.13 : x
  2. Step 2: Convert to fraction form
    31,120,508.81/68,506,948.13 = 68,506,948.13/x
  3. Step 3: Cross multiply
    31,120,508.81x = 68,506,948.13 × 68,506,948.13
  4. Step 4: Simplify right side
    31,120,508.81x = 4,693,201,941,401,441
  5. Step 5: Solve for x
    x = 4,693,201,941,401,441/31,120,508.81
  6. Step 6: Final answer
    x = 150,807,365.32

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.