Home / 200,009,169.27-300,025,301.40-77,188,124.07

Finding the Fourth Proportional to 200,009,169.27, 300,025,301.40 and 77,188,124.07

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Solution

The fourth proportional to 200,009,169.27, 300,025,301.40 and 77,188,124.07 is: 115,786,642.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,009,169.27 : 300,025,301.40 = 77,188,124.07 : x
  2. Step 2: Convert to fraction form
    200,009,169.27/300,025,301.40 = 77,188,124.07/x
  3. Step 3: Cross multiply
    200,009,169.27x = 300,025,301.40 × 77,188,124.07
  4. Step 4: Simplify right side
    200,009,169.27x = 23,158,390,188,602,340
  5. Step 5: Solve for x
    x = 23,158,390,188,602,340/200,009,169.27
  6. Step 6: Final answer
    x = 115,786,642.55

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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.