Home / 10,128,103.16-15,191,211.12-2,842,243.88

Finding the Fourth Proportional to 10,128,103.16, 15,191,211.12 and 2,842,243.88

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Solution

The fourth proportional to 10,128,103.16, 15,191,211.12 and 2,842,243.88 is: 4,263,101.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128,103.16 : 15,191,211.12 = 2,842,243.88 : x
  2. Step 2: Convert to fraction form
    10,128,103.16/15,191,211.12 = 2,842,243.88/x
  3. Step 3: Cross multiply
    10,128,103.16x = 15,191,211.12 × 2,842,243.88
  4. Step 4: Simplify right side
    10,128,103.16x = 43,177,126,835,607.95
  5. Step 5: Solve for x
    x = 43,177,126,835,607.95/10,128,103.16
  6. Step 6: Final answer
    x = 4,263,101.01

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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.