Home / 7,219,013.80-10,828,520.70-4,479,140.20

Finding the Fourth Proportional to 7,219,013.80, 10,828,520.70 and 4,479,140.20

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Solution

The fourth proportional to 7,219,013.80, 10,828,520.70 and 4,479,140.20 is: 6,718,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219,013.80 : 10,828,520.70 = 4,479,140.20 : x
  2. Step 2: Convert to fraction form
    7,219,013.80/10,828,520.70 = 4,479,140.20/x
  3. Step 3: Cross multiply
    7,219,013.80x = 10,828,520.70 × 4,479,140.20
  4. Step 4: Simplify right side
    7,219,013.80x = 48,502,462,373,902.14
  5. Step 5: Solve for x
    x = 48,502,462,373,902.14/7,219,013.80
  6. Step 6: Final answer
    x = 6,718,710.30

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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.