Home / 7,145,487.20-10,718,230.80-6,473,640.80

Finding the Fourth Proportional to 7,145,487.20, 10,718,230.80 and 6,473,640.80

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Solution

The fourth proportional to 7,145,487.20, 10,718,230.80 and 6,473,640.80 is: 9,710,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145,487.20 : 10,718,230.80 = 6,473,640.80 : x
  2. Step 2: Convert to fraction form
    7,145,487.20/10,718,230.80 = 6,473,640.80/x
  3. Step 3: Cross multiply
    7,145,487.20x = 10,718,230.80 × 6,473,640.80
  4. Step 4: Simplify right side
    7,145,487.20x = 69,385,976,210,696.64
  5. Step 5: Solve for x
    x = 69,385,976,210,696.64/7,145,487.20
  6. Step 6: Final answer
    x = 9,710,461.20

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Similar ratio
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1.5x scale

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.