Home / 178,915,169,268.40-268,370,985,329.94-81,969,202,282.47

Finding the Fourth Proportional to 178,915,169,268.40, 268,370,985,329.94 and 81,969,202,282.47

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Solution

The fourth proportional to 178,915,169,268.40, 268,370,985,329.94 and 81,969,202,282.47 is: 122,952,993,159.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,915,169,268.40 : 268,370,985,329.94 = 81,969,202,282.47 : x
  2. Step 2: Convert to fraction form
    178,915,169,268.40/268,370,985,329.94 = 81,969,202,282.47/x
  3. Step 3: Cross multiply
    178,915,169,268.40x = 268,370,985,329.94 × 81,969,202,282.47
  4. Step 4: Simplify right side
    178,915,169,268.40x = 21,998,155,583,255,641,849,856
  5. Step 5: Solve for x
    x = 21,998,155,583,255,641,849,856/178,915,169,268.40
  6. Step 6: Final answer
    x = 122,952,993,159.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.