Home / 20,927,246.40-28,876,240.80-11,759,860.80

Finding the Fourth Proportional to 20,927,246.40, 28,876,240.80 and 11,759,860.80

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Solution

The fourth proportional to 20,927,246.40, 28,876,240.80 and 11,759,860.80 is: 16,226,720.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927,246.40 : 28,876,240.80 = 11,759,860.80 : x
  2. Step 2: Convert to fraction form
    20,927,246.40/28,876,240.80 = 11,759,860.80/x
  3. Step 3: Cross multiply
    20,927,246.40x = 28,876,240.80 × 11,759,860.80
  4. Step 4: Simplify right side
    20,927,246.40x = 339,580,572,235,280.69
  5. Step 5: Solve for x
    x = 339,580,572,235,280.69/20,927,246.40
  6. Step 6: Final answer
    x = 16,226,720.22

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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.