Home / 28,308,045.20-42,462,067.80-16,942,643.60

Finding the Fourth Proportional to 28,308,045.20, 42,462,067.80 and 16,942,643.60

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Solution

The fourth proportional to 28,308,045.20, 42,462,067.80 and 16,942,643.60 is: 25,413,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,308,045.20 : 42,462,067.80 = 16,942,643.60 : x
  2. Step 2: Convert to fraction form
    28,308,045.20/42,462,067.80 = 16,942,643.60/x
  3. Step 3: Cross multiply
    28,308,045.20x = 42,462,067.80 × 16,942,643.60
  4. Step 4: Simplify right side
    28,308,045.20x = 719,419,681,254,436.12
  5. Step 5: Solve for x
    x = 719,419,681,254,436.12/28,308,045.20
  6. Step 6: Final answer
    x = 25,413,965.40

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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.