Home / 12,961,966.74-19,438,447.56-7,213,472.82

Finding the Fourth Proportional to 12,961,966.74, 19,438,447.56 and 7,213,472.82

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Solution

The fourth proportional to 12,961,966.74, 19,438,447.56 and 7,213,472.82 is: 10,817,703.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961,966.74 : 19,438,447.56 = 7,213,472.82 : x
  2. Step 2: Convert to fraction form
    12,961,966.74/19,438,447.56 = 7,213,472.82/x
  3. Step 3: Cross multiply
    12,961,966.74x = 19,438,447.56 × 7,213,472.82
  4. Step 4: Simplify right side
    12,961,966.74x = 140,218,713,137,055.31
  5. Step 5: Solve for x
    x = 140,218,713,137,055.31/12,961,966.74
  6. Step 6: Final answer
    x = 10,817,703.51

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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.