Home / 145,215,067.10-200,390,961.66-79,134,156.93

Finding the Fourth Proportional to 145,215,067.10, 200,390,961.66 and 79,134,156.93

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Solution

The fourth proportional to 145,215,067.10, 200,390,961.66 and 79,134,156.93 is: 109,201,959.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,215,067.10 : 200,390,961.66 = 79,134,156.93 : x
  2. Step 2: Convert to fraction form
    145,215,067.10/200,390,961.66 = 79,134,156.93/x
  3. Step 3: Cross multiply
    145,215,067.10x = 200,390,961.66 × 79,134,156.93
  4. Step 4: Simplify right side
    145,215,067.10x = 15,857,769,807,356,054
  5. Step 5: Solve for x
    x = 15,857,769,807,356,054/145,215,067.10
  6. Step 6: Final answer
    x = 109,201,959.03

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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.