Home / 81,420,552,637.20-122,130,828,955.80-54,972,647,254.80

Finding the Fourth Proportional to 81,420,552,637.20, 122,130,828,955.80 and 54,972,647,254.80

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Solution

The fourth proportional to 81,420,552,637.20, 122,130,828,955.80 and 54,972,647,254.80 is: 82,458,970,882.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,420,552,637.20 : 122,130,828,955.80 = 54,972,647,254.80 : x
  2. Step 2: Convert to fraction form
    81,420,552,637.20/122,130,828,955.80 = 54,972,647,254.80/x
  3. Step 3: Cross multiply
    81,420,552,637.20x = 122,130,828,955.80 × 54,972,647,254.80
  4. Step 4: Simplify right side
    81,420,552,637.20x = 6,713,854,979,123,507,625,984
  5. Step 5: Solve for x
    x = 6,713,854,979,123,507,625,984/81,420,552,637.20
  6. Step 6: Final answer
    x = 82,458,970,882.20

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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.