Home / 105,514,139.71-145,617,590.70-66,389,453.29

Finding the Fourth Proportional to 105,514,139.71, 145,617,590.70 and 66,389,453.29

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Solution

The fourth proportional to 105,514,139.71, 145,617,590.70 and 66,389,453.29 is: 91,622,528.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,514,139.71 : 145,617,590.70 = 66,389,453.29 : x
  2. Step 2: Convert to fraction form
    105,514,139.71/145,617,590.70 = 66,389,453.29/x
  3. Step 3: Cross multiply
    105,514,139.71x = 145,617,590.70 × 66,389,453.29
  4. Step 4: Simplify right side
    105,514,139.71x = 9,667,472,235,979,988
  5. Step 5: Solve for x
    x = 9,667,472,235,979,988/105,514,139.71
  6. Step 6: Final answer
    x = 91,622,528.15

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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.