Home / 207,230,778.40-310,436,761.20-105,068,135.20

Finding the Fourth Proportional to 207,230,778.40, 310,436,761.20 and 105,068,135.20

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Solution

The fourth proportional to 207,230,778.40, 310,436,761.20 and 105,068,135.20 is: 157,394,629.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,230,778.40 : 310,436,761.20 = 105,068,135.20 : x
  2. Step 2: Convert to fraction form
    207,230,778.40/310,436,761.20 = 105,068,135.20/x
  3. Step 3: Cross multiply
    207,230,778.40x = 310,436,761.20 × 105,068,135.20
  4. Step 4: Simplify right side
    207,230,778.40x = 32,617,011,596,811,712
  5. Step 5: Solve for x
    x = 32,617,011,596,811,712/207,230,778.40
  6. Step 6: Final answer
    x = 157,394,629.55

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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.