Home / 21,168,092.80-31,752,139.20-5,211,740.80

Finding the Fourth Proportional to 21,168,092.80, 31,752,139.20 and 5,211,740.80

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Solution

The fourth proportional to 21,168,092.80, 31,752,139.20 and 5,211,740.80 is: 7,817,611.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,168,092.80 : 31,752,139.20 = 5,211,740.80 : x
  2. Step 2: Convert to fraction form
    21,168,092.80/31,752,139.20 = 5,211,740.80/x
  3. Step 3: Cross multiply
    21,168,092.80x = 31,752,139.20 × 5,211,740.80
  4. Step 4: Simplify right side
    21,168,092.80x = 165,483,919,355,919.34
  5. Step 5: Solve for x
    x = 165,483,919,355,919.34/21,168,092.80
  6. Step 6: Final answer
    x = 7,817,611.20

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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.