Home / 28,072,468.93-38,793,275.40-20,257,629.01

Finding the Fourth Proportional to 28,072,468.93, 38,793,275.40 and 20,257,629.01

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Solution

The fourth proportional to 28,072,468.93, 38,793,275.40 and 20,257,629.01 is: 27,993,967.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072,468.93 : 38,793,275.40 = 20,257,629.01 : x
  2. Step 2: Convert to fraction form
    28,072,468.93/38,793,275.40 = 20,257,629.01/x
  3. Step 3: Cross multiply
    28,072,468.93x = 38,793,275.40 × 20,257,629.01
  4. Step 4: Simplify right side
    28,072,468.93x = 785,859,781,135,959.38
  5. Step 5: Solve for x
    x = 785,859,781,135,959.38/28,072,468.93
  6. Step 6: Final answer
    x = 27,993,967.44

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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.