Home / 6,781,079.61-10,171,698.69-1,988,865.07

Finding the Fourth Proportional to 6,781,079.61, 10,171,698.69 and 1,988,865.07

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Solution

The fourth proportional to 6,781,079.61, 10,171,698.69 and 1,988,865.07 is: 2,983,320.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,781,079.61 : 10,171,698.69 = 1,988,865.07 : x
  2. Step 2: Convert to fraction form
    6,781,079.61/10,171,698.69 = 1,988,865.07/x
  3. Step 3: Cross multiply
    6,781,079.61x = 10,171,698.69 × 1,988,865.07
  4. Step 4: Simplify right side
    6,781,079.61x = 20,230,136,227,105.76
  5. Step 5: Solve for x
    x = 20,230,136,227,105.76/6,781,079.61
  6. Step 6: Final answer
    x = 2,983,320.86

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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.