Home / 20,804,621.36-28,712,538.52-11,984,377.46

Finding the Fourth Proportional to 20,804,621.36, 28,712,538.52 and 11,984,377.46

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Solution

The fourth proportional to 20,804,621.36, 28,712,538.52 and 11,984,377.46 is: 16,539,685.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804,621.36 : 28,712,538.52 = 11,984,377.46 : x
  2. Step 2: Convert to fraction form
    20,804,621.36/28,712,538.52 = 11,984,377.46/x
  3. Step 3: Cross multiply
    20,804,621.36x = 28,712,538.52 × 11,984,377.46
  4. Step 4: Simplify right side
    20,804,621.36x = 344,101,899,284,946.12
  5. Step 5: Solve for x
    x = 344,101,899,284,946.12/20,804,621.36
  6. Step 6: Final answer
    x = 16,539,685.75

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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.