Home / 21,003,318.87-31,462,955.10-16,692,643.46

Finding the Fourth Proportional to 21,003,318.87, 31,462,955.10 and 16,692,643.46

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Solution

The fourth proportional to 21,003,318.87, 31,462,955.10 and 16,692,643.46 is: 25,005,566.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,003,318.87 : 31,462,955.10 = 16,692,643.46 : x
  2. Step 2: Convert to fraction form
    21,003,318.87/31,462,955.10 = 16,692,643.46/x
  3. Step 3: Cross multiply
    21,003,318.87x = 31,462,955.10 × 16,692,643.46
  4. Step 4: Simplify right side
    21,003,318.87x = 525,199,891,524,973.88
  5. Step 5: Solve for x
    x = 525,199,891,524,973.88/21,003,318.87
  6. Step 6: Final answer
    x = 25,005,566.73

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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.