Home / 15,557,149.76-21,468,870.56-8,587,831.36

Finding the Fourth Proportional to 15,557,149.76, 21,468,870.56 and 8,587,831.36

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Solution

The fourth proportional to 15,557,149.76, 21,468,870.56 and 8,587,831.36 is: 11,851,209.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,557,149.76 : 21,468,870.56 = 8,587,831.36 : x
  2. Step 2: Convert to fraction form
    15,557,149.76/21,468,870.56 = 8,587,831.36/x
  3. Step 3: Cross multiply
    15,557,149.76x = 21,468,870.56 × 8,587,831.36
  4. Step 4: Simplify right side
    15,557,149.76x = 184,371,039,858,948.75
  5. Step 5: Solve for x
    x = 184,371,039,858,948.75/15,557,149.76
  6. Step 6: Final answer
    x = 11,851,209.42

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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.