Home / 12,698,707.40-17,524,357.86-7,472,870.60

Finding the Fourth Proportional to 12,698,707.40, 17,524,357.86 and 7,472,870.60

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Solution

The fourth proportional to 12,698,707.40, 17,524,357.86 and 7,472,870.60 is: 10,312,644.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,698,707.40 : 17,524,357.86 = 7,472,870.60 : x
  2. Step 2: Convert to fraction form
    12,698,707.40/17,524,357.86 = 7,472,870.60/x
  3. Step 3: Cross multiply
    12,698,707.40x = 17,524,357.86 × 7,472,870.60
  4. Step 4: Simplify right side
    12,698,707.40x = 130,957,258,635,872.91
  5. Step 5: Solve for x
    x = 130,957,258,635,872.91/12,698,707.40
  6. Step 6: Final answer
    x = 10,312,644.78

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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.