Home / 30,575,468.60-42,178,067.62-18,176,742.49

Finding the Fourth Proportional to 30,575,468.60, 42,178,067.62 and 18,176,742.49

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Solution

The fourth proportional to 30,575,468.60, 42,178,067.62 and 18,176,742.49 is: 25,074,345.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,575,468.60 : 42,178,067.62 = 18,176,742.49 : x
  2. Step 2: Convert to fraction form
    30,575,468.60/42,178,067.62 = 18,176,742.49/x
  3. Step 3: Cross multiply
    30,575,468.60x = 42,178,067.62 × 18,176,742.49
  4. Step 4: Simplify right side
    30,575,468.60x = 766,659,873,643,656.75
  5. Step 5: Solve for x
    x = 766,659,873,643,656.75/30,575,468.60
  6. Step 6: Final answer
    x = 25,074,345.84

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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.