Home / 278,512,352.55-417,768,528.83-181,657,230.30

Finding the Fourth Proportional to 278,512,352.55, 417,768,528.83 and 181,657,230.30

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Solution

The fourth proportional to 278,512,352.55, 417,768,528.83 and 181,657,230.30 is: 272,485,845.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,512,352.55 : 417,768,528.83 = 181,657,230.30 : x
  2. Step 2: Convert to fraction form
    278,512,352.55/417,768,528.83 = 181,657,230.30/x
  3. Step 3: Cross multiply
    278,512,352.55x = 417,768,528.83 × 181,657,230.30
  4. Step 4: Simplify right side
    278,512,352.55x = 75,890,673,852,855,216
  5. Step 5: Solve for x
    x = 75,890,673,852,855,216/278,512,352.55
  6. Step 6: Final answer
    x = 272,485,845.45

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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.