Home / 12,923,940.32-17,834,979-7,122,709.52

Finding the Fourth Proportional to 12,923,940.32, 17,834,979 and 7,122,709.52

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Solution

The fourth proportional to 12,923,940.32, 17,834,979 and 7,122,709.52 is: 9,829,306.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,923,940.32 : 17,834,979 = 7,122,709.52 : x
  2. Step 2: Convert to fraction form
    12,923,940.32/17,834,979 = 7,122,709.52/x
  3. Step 3: Cross multiply
    12,923,940.32x = 17,834,979 × 7,122,709.52
  4. Step 4: Simplify right side
    12,923,940.32x = 127,033,374,712,300.08
  5. Step 5: Solve for x
    x = 127,033,374,712,300.08/12,923,940.32
  6. Step 6: Final answer
    x = 9,829,306.82

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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.