Home / 21,012,980.80-31,494,976.80-9,654,577.60

Finding the Fourth Proportional to 21,012,980.80, 31,494,976.80 and 9,654,577.60

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Solution

The fourth proportional to 21,012,980.80, 31,494,976.80 and 9,654,577.60 is: 14,470,612.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,012,980.80 : 31,494,976.80 = 9,654,577.60 : x
  2. Step 2: Convert to fraction form
    21,012,980.80/31,494,976.80 = 9,654,577.60/x
  3. Step 3: Cross multiply
    21,012,980.80x = 31,494,976.80 × 9,654,577.60
  4. Step 4: Simplify right side
    21,012,980.80x = 304,070,697,525,799.69
  5. Step 5: Solve for x
    x = 304,070,697,525,799.69/21,012,980.80
  6. Step 6: Final answer
    x = 14,470,612.26

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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.