Home / 6,468,908.80-9,703,363.20-1,920,121.60

Finding the Fourth Proportional to 6,468,908.80, 9,703,363.20 and 1,920,121.60

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Solution

The fourth proportional to 6,468,908.80, 9,703,363.20 and 1,920,121.60 is: 2,880,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,468,908.80 : 9,703,363.20 = 1,920,121.60 : x
  2. Step 2: Convert to fraction form
    6,468,908.80/9,703,363.20 = 1,920,121.60/x
  3. Step 3: Cross multiply
    6,468,908.80x = 9,703,363.20 × 1,920,121.60
  4. Step 4: Simplify right side
    6,468,908.80x = 18,631,637,272,965.12
  5. Step 5: Solve for x
    x = 18,631,637,272,965.12/6,468,908.80
  6. Step 6: Final answer
    x = 2,880,182.40

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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.