Home / 21,323,129.76-31,984,788.37-6,750,120.87

Finding the Fourth Proportional to 21,323,129.76, 31,984,788.37 and 6,750,120.87

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Solution

The fourth proportional to 21,323,129.76, 31,984,788.37 and 6,750,120.87 is: 10,125,210.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,323,129.76 : 31,984,788.37 = 6,750,120.87 : x
  2. Step 2: Convert to fraction form
    21,323,129.76/31,984,788.37 = 6,750,120.87/x
  3. Step 3: Cross multiply
    21,323,129.76x = 31,984,788.37 × 6,750,120.87
  4. Step 4: Simplify right side
    21,323,129.76x = 215,901,187,498,870.28
  5. Step 5: Solve for x
    x = 215,901,187,498,870.28/21,323,129.76
  6. Step 6: Final answer
    x = 10,125,210.98

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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.