Home / 81,434,992,815.60-122,152,489,223.40-75,557,680,508.40

Finding the Fourth Proportional to 81,434,992,815.60, 122,152,489,223.40 and 75,557,680,508.40

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Solution

The fourth proportional to 81,434,992,815.60, 122,152,489,223.40 and 75,557,680,508.40 is: 113,336,520,762.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,434,992,815.60 : 122,152,489,223.40 = 75,557,680,508.40 : x
  2. Step 2: Convert to fraction form
    81,434,992,815.60/122,152,489,223.40 = 75,557,680,508.40/x
  3. Step 3: Cross multiply
    81,434,992,815.60x = 122,152,489,223.40 × 75,557,680,508.40
  4. Step 4: Simplify right side
    81,434,992,815.60x = 9,229,558,754,047,429,705,728
  5. Step 5: Solve for x
    x = 9,229,558,754,047,429,705,728/81,434,992,815.60
  6. Step 6: Final answer
    x = 113,336,520,762.60

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1.5x scale

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.