Home / 21,120,119.91-31,626,592.65-17,699,411.34

Finding the Fourth Proportional to 21,120,119.91, 31,626,592.65 and 17,699,411.34

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Solution

The fourth proportional to 21,120,119.91, 31,626,592.65 and 17,699,411.34 is: 26,504,209.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,120,119.91 : 31,626,592.65 = 17,699,411.34 : x
  2. Step 2: Convert to fraction form
    21,120,119.91/31,626,592.65 = 17,699,411.34/x
  3. Step 3: Cross multiply
    21,120,119.91x = 31,626,592.65 × 17,699,411.34
  4. Step 4: Simplify right side
    21,120,119.91x = 559,772,072,594,970.62
  5. Step 5: Solve for x
    x = 559,772,072,594,970.62/21,120,119.91
  6. Step 6: Final answer
    x = 26,504,209.02

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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.