Home / 105,514,138.71-145,617,589.32-66,389,452.29

Finding the Fourth Proportional to 105,514,138.71, 145,617,589.32 and 66,389,452.29

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Solution

The fourth proportional to 105,514,138.71, 145,617,589.32 and 66,389,452.29 is: 91,622,526.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,514,138.71 : 145,617,589.32 = 66,389,452.29 : x
  2. Step 2: Convert to fraction form
    105,514,138.71/145,617,589.32 = 66,389,452.29/x
  3. Step 3: Cross multiply
    105,514,138.71x = 145,617,589.32 × 66,389,452.29
  4. Step 4: Simplify right side
    105,514,138.71x = 9,667,471,997,684,918
  5. Step 5: Solve for x
    x = 9,667,471,997,684,918/105,514,138.71
  6. Step 6: Final answer
    x = 91,622,526.77

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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.