Home / 12,819,505.96-17,690,922.21-7,018,656.13

Finding the Fourth Proportional to 12,819,505.96, 17,690,922.21 and 7,018,656.13

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Solution

The fourth proportional to 12,819,505.96, 17,690,922.21 and 7,018,656.13 is: 9,685,747.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819,505.96 : 17,690,922.21 = 7,018,656.13 : x
  2. Step 2: Convert to fraction form
    12,819,505.96/17,690,922.21 = 7,018,656.13/x
  3. Step 3: Cross multiply
    12,819,505.96x = 17,690,922.21 × 7,018,656.13
  4. Step 4: Simplify right side
    12,819,505.96x = 124,166,499,614,569.66
  5. Step 5: Solve for x
    x = 124,166,499,614,569.66/12,819,505.96
  6. Step 6: Final answer
    x = 9,685,747.64

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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.