Home / 155,932,581,802.80-215,188,226,358.70-86,409,383,969.84

Finding the Fourth Proportional to 155,932,581,802.80, 215,188,226,358.70 and 86,409,383,969.84

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Solution

The fourth proportional to 155,932,581,802.80, 215,188,226,358.70 and 86,409,383,969.84 is: 119,245,650,025.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,932,581,802.80 : 215,188,226,358.70 = 86,409,383,969.84 : x
  2. Step 2: Convert to fraction form
    155,932,581,802.80/215,188,226,358.70 = 86,409,383,969.84/x
  3. Step 3: Cross multiply
    155,932,581,802.80x = 215,188,226,358.70 × 86,409,383,969.84
  4. Step 4: Simplify right side
    155,932,581,802.80x = 18,594,282,077,217,754,185,728
  5. Step 5: Solve for x
    x = 18,594,282,077,217,754,185,728/155,932,581,802.80
  6. Step 6: Final answer
    x = 119,245,650,025.43

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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.