Home / 80,660,018,815.31-111,361,060,598.47-51,345,969,859.58

Finding the Fourth Proportional to 80,660,018,815.31, 111,361,060,598.47 and 51,345,969,859.58

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Solution

The fourth proportional to 80,660,018,815.31, 111,361,060,598.47 and 51,345,969,859.58 is: 70,889,416,404.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,660,018,815.31 : 111,361,060,598.47 = 51,345,969,859.58 : x
  2. Step 2: Convert to fraction form
    80,660,018,815.31/111,361,060,598.47 = 51,345,969,859.58/x
  3. Step 3: Cross multiply
    80,660,018,815.31x = 111,361,060,598.47 × 51,345,969,859.58
  4. Step 4: Simplify right side
    80,660,018,815.31x = 5,717,941,661,019,902,312,448
  5. Step 5: Solve for x
    x = 5,717,941,661,019,902,312,448/80,660,018,815.31
  6. Step 6: Final answer
    x = 70,889,416,404.83

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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.