Home / 21,294,539.20-31,941,808.80-9,169,811.20

Finding the Fourth Proportional to 21,294,539.20, 31,941,808.80 and 9,169,811.20

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Solution

The fourth proportional to 21,294,539.20, 31,941,808.80 and 9,169,811.20 is: 13,754,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294,539.20 : 31,941,808.80 = 9,169,811.20 : x
  2. Step 2: Convert to fraction form
    21,294,539.20/31,941,808.80 = 9,169,811.20/x
  3. Step 3: Cross multiply
    21,294,539.20x = 31,941,808.80 × 9,169,811.20
  4. Step 4: Simplify right side
    21,294,539.20x = 292,900,356,082,498.56
  5. Step 5: Solve for x
    x = 292,900,356,082,498.56/21,294,539.20
  6. Step 6: Final answer
    x = 13,754,716.80

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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.