Home / 7,280,785.80-10,921,178.70-1,962,001.80

Finding the Fourth Proportional to 7,280,785.80, 10,921,178.70 and 1,962,001.80

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Solution

The fourth proportional to 7,280,785.80, 10,921,178.70 and 1,962,001.80 is: 2,943,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280,785.80 : 10,921,178.70 = 1,962,001.80 : x
  2. Step 2: Convert to fraction form
    7,280,785.80/10,921,178.70 = 1,962,001.80/x
  3. Step 3: Cross multiply
    7,280,785.80x = 10,921,178.70 × 1,962,001.80
  4. Step 4: Simplify right side
    7,280,785.80x = 21,427,372,267,521.66
  5. Step 5: Solve for x
    x = 21,427,372,267,521.66/7,280,785.80
  6. Step 6: Final answer
    x = 2,943,002.70

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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.