Home / 145,368,235.40-200,610,530.01-79,288,716.92

Finding the Fourth Proportional to 145,368,235.40, 200,610,530.01 and 79,288,716.92

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Solution

The fourth proportional to 145,368,235.40, 200,610,530.01 and 79,288,716.92 is: 109,419,719.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,368,235.40 : 200,610,530.01 = 79,288,716.92 : x
  2. Step 2: Convert to fraction form
    145,368,235.40/200,610,530.01 = 79,288,716.92/x
  3. Step 3: Cross multiply
    145,368,235.40x = 200,610,530.01 × 79,288,716.92
  4. Step 4: Simplify right side
    145,368,235.40x = 15,906,151,525,134,054
  5. Step 5: Solve for x
    x = 15,906,151,525,134,054/145,368,235.40
  6. Step 6: Final answer
    x = 109,419,719.39

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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.