Home / 2,989,990.80-4,484,986.20-2,972,276.10

Finding the Fourth Proportional to 2,989,990.80, 4,484,986.20 and 2,972,276.10

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Solution

The fourth proportional to 2,989,990.80, 4,484,986.20 and 2,972,276.10 is: 4,458,414.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989,990.80 : 4,484,986.20 = 2,972,276.10 : x
  2. Step 2: Convert to fraction form
    2,989,990.80/4,484,986.20 = 2,972,276.10/x
  3. Step 3: Cross multiply
    2,989,990.80x = 4,484,986.20 × 2,972,276.10
  4. Step 4: Simplify right side
    2,989,990.80x = 13,330,617,291,089.82
  5. Step 5: Solve for x
    x = 13,330,617,291,089.82/2,989,990.80
  6. Step 6: Final answer
    x = 4,458,414.15

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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.