Home / 21,303,726.80-31,971,336.60-14,112,870.80

Finding the Fourth Proportional to 21,303,726.80, 31,971,336.60 and 14,112,870.80

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Solution

The fourth proportional to 21,303,726.80, 31,971,336.60 and 14,112,870.80 is: 21,179,737.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,303,726.80 : 31,971,336.60 = 14,112,870.80 : x
  2. Step 2: Convert to fraction form
    21,303,726.80/31,971,336.60 = 14,112,870.80/x
  3. Step 3: Cross multiply
    21,303,726.80x = 31,971,336.60 × 14,112,870.80
  4. Step 4: Simplify right side
    21,303,726.80x = 451,207,342,739,111.31
  5. Step 5: Solve for x
    x = 451,207,342,739,111.31/21,303,726.80
  6. Step 6: Final answer
    x = 21,179,737.56

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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.