Home / 126,036,420.80-189,054,631.20-82,963,601.60

Finding the Fourth Proportional to 126,036,420.80, 189,054,631.20 and 82,963,601.60

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Solution

The fourth proportional to 126,036,420.80, 189,054,631.20 and 82,963,601.60 is: 124,445,402.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,036,420.80 : 189,054,631.20 = 82,963,601.60 : x
  2. Step 2: Convert to fraction form
    126,036,420.80/189,054,631.20 = 82,963,601.60/x
  3. Step 3: Cross multiply
    126,036,420.80x = 189,054,631.20 × 82,963,601.60
  4. Step 4: Simplify right side
    126,036,420.80x = 15,684,653,103,511,728
  5. Step 5: Solve for x
    x = 15,684,653,103,511,728/126,036,420.80
  6. Step 6: Final answer
    x = 124,445,402.40

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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.