Home / 20,817,319.29-31,254,633.98-10,589,100.72

Finding the Fourth Proportional to 20,817,319.29, 31,254,633.98 and 10,589,100.72

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Solution

The fourth proportional to 20,817,319.29, 31,254,633.98 and 10,589,100.72 is: 15,898,226.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,817,319.29 : 31,254,633.98 = 10,589,100.72 : x
  2. Step 2: Convert to fraction form
    20,817,319.29/31,254,633.98 = 10,589,100.72/x
  3. Step 3: Cross multiply
    20,817,319.29x = 31,254,633.98 × 10,589,100.72
  4. Step 4: Simplify right side
    20,817,319.29x = 330,958,467,128,009
  5. Step 5: Solve for x
    x = 330,958,467,128,009/20,817,319.29
  6. Step 6: Final answer
    x = 15,898,226.98

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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.