Home / 21,775,304.80-30,049,682.16-11,985,539.68

Finding the Fourth Proportional to 21,775,304.80, 30,049,682.16 and 11,985,539.68

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Solution

The fourth proportional to 21,775,304.80, 30,049,682.16 and 11,985,539.68 is: 16,539,913.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,775,304.80 : 30,049,682.16 = 11,985,539.68 : x
  2. Step 2: Convert to fraction form
    21,775,304.80/30,049,682.16 = 11,985,539.68/x
  3. Step 3: Cross multiply
    21,775,304.80x = 30,049,682.16 × 11,985,539.68
  4. Step 4: Simplify right side
    21,775,304.80x = 360,161,657,900,068.12
  5. Step 5: Solve for x
    x = 360,161,657,900,068.12/21,775,304.80
  6. Step 6: Final answer
    x = 16,539,913.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.