Home / 105,514,139.21-145,617,590.01-66,389,452.79

Finding the Fourth Proportional to 105,514,139.21, 145,617,590.01 and 66,389,452.79

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Solution

The fourth proportional to 105,514,139.21, 145,617,590.01 and 66,389,452.79 is: 91,622,527.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,514,139.21 : 145,617,590.01 = 66,389,452.79 : x
  2. Step 2: Convert to fraction form
    105,514,139.21/145,617,590.01 = 66,389,452.79/x
  3. Step 3: Cross multiply
    105,514,139.21x = 145,617,590.01 × 66,389,452.79
  4. Step 4: Simplify right side
    105,514,139.21x = 9,667,472,117,362,470
  5. Step 5: Solve for x
    x = 9,667,472,117,362,470/105,514,139.21
  6. Step 6: Final answer
    x = 91,622,527.46

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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.