Home / 163,327,809.20-245,035,016.40-71,172,003.20

Finding the Fourth Proportional to 163,327,809.20, 245,035,016.40 and 71,172,003.20

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Solution

The fourth proportional to 163,327,809.20, 245,035,016.40 and 71,172,003.20 is: 106,776,874.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,327,809.20 : 245,035,016.40 = 71,172,003.20 : x
  2. Step 2: Convert to fraction form
    163,327,809.20/245,035,016.40 = 71,172,003.20/x
  3. Step 3: Cross multiply
    163,327,809.20x = 245,035,016.40 × 71,172,003.20
  4. Step 4: Simplify right side
    163,327,809.20x = 17,439,632,971,332,854
  5. Step 5: Solve for x
    x = 17,439,632,971,332,854/163,327,809.20
  6. Step 6: Final answer
    x = 106,776,874.41

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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.