Home / 20,671,865.54-31,010,635.94-7,021,347.26

Finding the Fourth Proportional to 20,671,865.54, 31,010,635.94 and 7,021,347.26

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Solution

The fourth proportional to 20,671,865.54, 31,010,635.94 and 7,021,347.26 is: 10,532,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,671,865.54 : 31,010,635.94 = 7,021,347.26 : x
  2. Step 2: Convert to fraction form
    20,671,865.54/31,010,635.94 = 7,021,347.26/x
  3. Step 3: Cross multiply
    20,671,865.54x = 31,010,635.94 × 7,021,347.26
  4. Step 4: Simplify right side
    20,671,865.54x = 217,736,443,498,016.59
  5. Step 5: Solve for x
    x = 217,736,443,498,016.59/20,671,865.54
  6. Step 6: Final answer
    x = 10,532,984.70

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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.