Home / 20,817,543.29-31,216,198.68-10,438,303.22

Finding the Fourth Proportional to 20,817,543.29, 31,216,198.68 and 10,438,303.22

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Solution

The fourth proportional to 20,817,543.29, 31,216,198.68 and 10,438,303.22 is: 15,652,382.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,817,543.29 : 31,216,198.68 = 10,438,303.22 : x
  2. Step 2: Convert to fraction form
    20,817,543.29/31,216,198.68 = 10,438,303.22/x
  3. Step 3: Cross multiply
    20,817,543.29x = 31,216,198.68 × 10,438,303.22
  4. Step 4: Simplify right side
    20,817,543.29x = 325,844,147,041,522.75
  5. Step 5: Solve for x
    x = 325,844,147,041,522.75/20,817,543.29
  6. Step 6: Final answer
    x = 15,652,382.35

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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.