Home / 444,420,688.87-663,928,002.44-287,697,740.05

Finding the Fourth Proportional to 444,420,688.87, 663,928,002.44 and 287,697,740.05

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Solution

The fourth proportional to 444,420,688.87, 663,928,002.44 and 287,697,740.05 is: 429,796,790.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,420,688.87 : 663,928,002.44 = 287,697,740.05 : x
  2. Step 2: Convert to fraction form
    444,420,688.87/663,928,002.44 = 287,697,740.05/x
  3. Step 3: Cross multiply
    444,420,688.87x = 663,928,002.44 × 287,697,740.05
  4. Step 4: Simplify right side
    444,420,688.87x = 191,010,585,857,898,912
  5. Step 5: Solve for x
    x = 191,010,585,857,898,912/444,420,688.87
  6. Step 6: Final answer
    x = 429,796,790.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.