Home / 21,012,824.80-31,494,742.80-9,654,421.60

Finding the Fourth Proportional to 21,012,824.80, 31,494,742.80 and 9,654,421.60

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Solution

The fourth proportional to 21,012,824.80, 31,494,742.80 and 9,654,421.60 is: 14,470,378.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,012,824.80 : 31,494,742.80 = 9,654,421.60 : x
  2. Step 2: Convert to fraction form
    21,012,824.80/31,494,742.80 = 9,654,421.60/x
  3. Step 3: Cross multiply
    21,012,824.80x = 31,494,742.80 × 9,654,421.60
  4. Step 4: Simplify right side
    21,012,824.80x = 304,063,525,174,764.50
  5. Step 5: Solve for x
    x = 304,063,525,174,764.50/21,012,824.80
  6. Step 6: Final answer
    x = 14,470,378.36

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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.