Home / 55,178,642,821.20-82,767,964,231.80-31,959,631,237.20

Finding the Fourth Proportional to 55,178,642,821.20, 82,767,964,231.80 and 31,959,631,237.20

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Solution

The fourth proportional to 55,178,642,821.20, 82,767,964,231.80 and 31,959,631,237.20 is: 47,939,446,855.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,178,642,821.20 : 82,767,964,231.80 = 31,959,631,237.20 : x
  2. Step 2: Convert to fraction form
    55,178,642,821.20/82,767,964,231.80 = 31,959,631,237.20/x
  3. Step 3: Cross multiply
    55,178,642,821.20x = 82,767,964,231.80 × 31,959,631,237.20
  4. Step 4: Simplify right side
    55,178,642,821.20x = 2,645,233,615,102,087,790,592
  5. Step 5: Solve for x
    x = 2,645,233,615,102,087,790,592/55,178,642,821.20
  6. Step 6: Final answer
    x = 47,939,446,855.80

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Double scale
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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.