Home / 13,904,430.22-19,187,445.13-7,709,728.69

Finding the Fourth Proportional to 13,904,430.22, 19,187,445.13 and 7,709,728.69

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Solution

The fourth proportional to 13,904,430.22, 19,187,445.13 and 7,709,728.69 is: 10,639,054.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904,430.22 : 19,187,445.13 = 7,709,728.69 : x
  2. Step 2: Convert to fraction form
    13,904,430.22/19,187,445.13 = 7,709,728.69/x
  3. Step 3: Cross multiply
    13,904,430.22x = 19,187,445.13 × 7,709,728.69
  4. Step 4: Simplify right side
    13,904,430.22x = 147,929,996,206,561.78
  5. Step 5: Solve for x
    x = 147,929,996,206,561.78/13,904,430.22
  6. Step 6: Final answer
    x = 10,639,054.88

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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.