Home / 278,512,328.80-417,768,493.20-181,657,206.55

Finding the Fourth Proportional to 278,512,328.80, 417,768,493.20 and 181,657,206.55

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Solution

The fourth proportional to 278,512,328.80, 417,768,493.20 and 181,657,206.55 is: 272,485,809.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,512,328.80 : 417,768,493.20 = 181,657,206.55 : x
  2. Step 2: Convert to fraction form
    278,512,328.80/417,768,493.20 = 181,657,206.55/x
  3. Step 3: Cross multiply
    278,512,328.80x = 417,768,493.20 × 181,657,206.55
  4. Step 4: Simplify right side
    278,512,328.80x = 75,890,657,459,314,672
  5. Step 5: Solve for x
    x = 75,890,657,459,314,672/278,512,328.80
  6. Step 6: Final answer
    x = 272,485,809.83

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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.