Home / 11,137,455.20-16,706,182.80-7,778,223.20

Finding the Fourth Proportional to 11,137,455.20, 16,706,182.80 and 7,778,223.20

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Solution

The fourth proportional to 11,137,455.20, 16,706,182.80 and 7,778,223.20 is: 11,667,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,137,455.20 : 16,706,182.80 = 7,778,223.20 : x
  2. Step 2: Convert to fraction form
    11,137,455.20/16,706,182.80 = 7,778,223.20/x
  3. Step 3: Cross multiply
    11,137,455.20x = 16,706,182.80 × 7,778,223.20
  4. Step 4: Simplify right side
    11,137,455.20x = 129,944,418,638,400.97
  5. Step 5: Solve for x
    x = 129,944,418,638,400.97/11,137,455.20
  6. Step 6: Final answer
    x = 11,667,334.80

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1.5x scale

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.