Home / 20,876,621.80-31,322,805.90-10,103,459.80

Finding the Fourth Proportional to 20,876,621.80, 31,322,805.90 and 10,103,459.80

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Solution

The fourth proportional to 20,876,621.80, 31,322,805.90 and 10,103,459.80 is: 15,159,000.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,876,621.80 : 31,322,805.90 = 10,103,459.80 : x
  2. Step 2: Convert to fraction form
    20,876,621.80/31,322,805.90 = 10,103,459.80/x
  3. Step 3: Cross multiply
    20,876,621.80x = 31,322,805.90 × 10,103,459.80
  4. Step 4: Simplify right side
    20,876,621.80x = 316,468,710,233,852.81
  5. Step 5: Solve for x
    x = 316,468,710,233,852.81/20,876,621.80
  6. Step 6: Final answer
    x = 15,159,000.02

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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.