Home / 10,366,155.40-15,557,009.10-5,314,865.80

Finding the Fourth Proportional to 10,366,155.40, 15,557,009.10 and 5,314,865.80

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Solution

The fourth proportional to 10,366,155.40, 15,557,009.10 and 5,314,865.80 is: 7,976,285.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,366,155.40 : 15,557,009.10 = 5,314,865.80 : x
  2. Step 2: Convert to fraction form
    10,366,155.40/15,557,009.10 = 5,314,865.80/x
  3. Step 3: Cross multiply
    10,366,155.40x = 15,557,009.10 × 5,314,865.80
  4. Step 4: Simplify right side
    10,366,155.40x = 82,683,415,615,878.78
  5. Step 5: Solve for x
    x = 82,683,415,615,878.78/10,366,155.40
  6. Step 6: Final answer
    x = 7,976,285.56

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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.