Home / 20,347,927.80-30,521,891.70-18,434,740.20

Finding the Fourth Proportional to 20,347,927.80, 30,521,891.70 and 18,434,740.20

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Solution

The fourth proportional to 20,347,927.80, 30,521,891.70 and 18,434,740.20 is: 27,652,110.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347,927.80 : 30,521,891.70 = 18,434,740.20 : x
  2. Step 2: Convert to fraction form
    20,347,927.80/30,521,891.70 = 18,434,740.20/x
  3. Step 3: Cross multiply
    20,347,927.80x = 30,521,891.70 × 18,434,740.20
  4. Step 4: Simplify right side
    20,347,927.80x = 562,663,143,902,036.31
  5. Step 5: Solve for x
    x = 562,663,143,902,036.31/20,347,927.80
  6. Step 6: Final answer
    x = 27,652,110.30

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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.