Home / 278,041,539.80-417,062,309.70-73,590,282.20

Finding the Fourth Proportional to 278,041,539.80, 417,062,309.70 and 73,590,282.20

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Solution

The fourth proportional to 278,041,539.80, 417,062,309.70 and 73,590,282.20 is: 110,385,423.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,041,539.80 : 417,062,309.70 = 73,590,282.20 : x
  2. Step 2: Convert to fraction form
    278,041,539.80/417,062,309.70 = 73,590,282.20/x
  3. Step 3: Cross multiply
    278,041,539.80x = 417,062,309.70 × 73,590,282.20
  4. Step 4: Simplify right side
    278,041,539.80x = 30,691,733,065,806,796
  5. Step 5: Solve for x
    x = 30,691,733,065,806,796/278,041,539.80
  6. Step 6: Final answer
    x = 110,385,423.30

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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.