Home / 4,920,689.80-7,381,034.70-2,896,856.20

Finding the Fourth Proportional to 4,920,689.80, 7,381,034.70 and 2,896,856.20

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Solution

The fourth proportional to 4,920,689.80, 7,381,034.70 and 2,896,856.20 is: 4,345,284.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920,689.80 : 7,381,034.70 = 2,896,856.20 : x
  2. Step 2: Convert to fraction form
    4,920,689.80/7,381,034.70 = 2,896,856.20/x
  3. Step 3: Cross multiply
    4,920,689.80x = 7,381,034.70 × 2,896,856.20
  4. Step 4: Simplify right side
    4,920,689.80x = 21,381,796,133,110.14
  5. Step 5: Solve for x
    x = 21,381,796,133,110.14/4,920,689.80
  6. Step 6: Final answer
    x = 4,345,284.30

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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.