Home / 5,186,880.74-7,781,329.56-1,991,772.02

Finding the Fourth Proportional to 5,186,880.74, 7,781,329.56 and 1,991,772.02

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Solution

The fourth proportional to 5,186,880.74, 7,781,329.56 and 1,991,772.02 is: 2,988,045.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186,880.74 : 7,781,329.56 = 1,991,772.02 : x
  2. Step 2: Convert to fraction form
    5,186,880.74/7,781,329.56 = 1,991,772.02/x
  3. Step 3: Cross multiply
    5,186,880.74x = 7,781,329.56 × 1,991,772.02
  4. Step 4: Simplify right side
    5,186,880.74x = 15,498,634,496,006.91
  5. Step 5: Solve for x
    x = 15,498,634,496,006.91/5,186,880.74
  6. Step 6: Final answer
    x = 2,988,045.28

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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.