Home / 12,942,101.20-17,860,473.55-7,141,256.59

Finding the Fourth Proportional to 12,942,101.20, 17,860,473.55 and 7,141,256.59

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Solution

The fourth proportional to 12,942,101.20, 17,860,473.55 and 7,141,256.59 is: 9,855,140.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942,101.20 : 17,860,473.55 = 7,141,256.59 : x
  2. Step 2: Convert to fraction form
    12,942,101.20/17,860,473.55 = 7,141,256.59/x
  3. Step 3: Cross multiply
    12,942,101.20x = 17,860,473.55 × 7,141,256.59
  4. Step 4: Simplify right side
    12,942,101.20x = 127,546,224,439,458.20
  5. Step 5: Solve for x
    x = 127,546,224,439,458.20/12,942,101.20
  6. Step 6: Final answer
    x = 9,855,140.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.