Home / 26,513,897.60-39,686,865.60-20,803,203.20

Finding the Fourth Proportional to 26,513,897.60, 39,686,865.60 and 20,803,203.20

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Solution

The fourth proportional to 26,513,897.60, 39,686,865.60 and 20,803,203.20 is: 31,138,912.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,513,897.60 : 39,686,865.60 = 20,803,203.20 : x
  2. Step 2: Convert to fraction form
    26,513,897.60/39,686,865.60 = 20,803,203.20/x
  3. Step 3: Cross multiply
    26,513,897.60x = 39,686,865.60 × 20,803,203.20
  4. Step 4: Simplify right side
    26,513,897.60x = 825,613,929,447,889.88
  5. Step 5: Solve for x
    x = 825,613,929,447,889.88/26,513,897.60
  6. Step 6: Final answer
    x = 31,138,912.20

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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.