Home / 72,578,849.20-108,868,273.80-64,075,793.20

Finding the Fourth Proportional to 72,578,849.20, 108,868,273.80 and 64,075,793.20

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Solution

The fourth proportional to 72,578,849.20, 108,868,273.80 and 64,075,793.20 is: 96,113,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,578,849.20 : 108,868,273.80 = 64,075,793.20 : x
  2. Step 2: Convert to fraction form
    72,578,849.20/108,868,273.80 = 64,075,793.20/x
  3. Step 3: Cross multiply
    72,578,849.20x = 108,868,273.80 × 64,075,793.20
  4. Step 4: Simplify right side
    72,578,849.20x = 6,975,820,998,049,778
  5. Step 5: Solve for x
    x = 6,975,820,998,049,778/72,578,849.20
  6. Step 6: Final answer
    x = 96,113,689.80

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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.