Home / 12,948,465.21-17,868,883.73-7,147,248.45

Finding the Fourth Proportional to 12,948,465.21, 17,868,883.73 and 7,147,248.45

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Solution

The fourth proportional to 12,948,465.21, 17,868,883.73 and 7,147,248.45 is: 9,863,203.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,465.21 : 17,868,883.73 = 7,147,248.45 : x
  2. Step 2: Convert to fraction form
    12,948,465.21/17,868,883.73 = 7,147,248.45/x
  3. Step 3: Cross multiply
    12,948,465.21x = 17,868,883.73 × 7,147,248.45
  4. Step 4: Simplify right side
    12,948,465.21x = 127,713,351,542,472.72
  5. Step 5: Solve for x
    x = 127,713,351,542,472.72/12,948,465.21
  6. Step 6: Final answer
    x = 9,863,203.82

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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.