Home / 100,391,362.40-150,583,933.20-28,587,778.40

Finding the Fourth Proportional to 100,391,362.40, 150,583,933.20 and 28,587,778.40

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Solution

The fourth proportional to 100,391,362.40, 150,583,933.20 and 28,587,778.40 is: 42,880,781.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,391,362.40 : 150,583,933.20 = 28,587,778.40 : x
  2. Step 2: Convert to fraction form
    100,391,362.40/150,583,933.20 = 28,587,778.40/x
  3. Step 3: Cross multiply
    100,391,362.40x = 150,583,933.20 × 28,587,778.40
  4. Step 4: Simplify right side
    100,391,362.40x = 4,304,860,112,922,002.50
  5. Step 5: Solve for x
    x = 4,304,860,112,922,002.50/100,391,362.40
  6. Step 6: Final answer
    x = 42,880,781.87

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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.