Home / 155,932,581,805.71-215,188,226,362.72-86,409,383,972.74

Finding the Fourth Proportional to 155,932,581,805.71, 215,188,226,362.72 and 86,409,383,972.74

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Solution

The fourth proportional to 155,932,581,805.71, 215,188,226,362.72 and 86,409,383,972.74 is: 119,245,650,029.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,932,581,805.71 : 215,188,226,362.72 = 86,409,383,972.74 : x
  2. Step 2: Convert to fraction form
    155,932,581,805.71/215,188,226,362.72 = 86,409,383,972.74/x
  3. Step 3: Cross multiply
    155,932,581,805.71x = 215,188,226,362.72 × 86,409,383,972.74
  4. Step 4: Simplify right side
    155,932,581,805.71x = 18,594,282,078,188,519,555,072
  5. Step 5: Solve for x
    x = 18,594,282,078,188,519,555,072/155,932,581,805.71
  6. Step 6: Final answer
    x = 119,245,650,029.43

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1.5x scale

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.