Home / 82,046,138.21-113,258,533.25-51,121,586.42

Finding the Fourth Proportional to 82,046,138.21, 113,258,533.25 and 51,121,586.42

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Solution

The fourth proportional to 82,046,138.21, 113,258,533.25 and 51,121,586.42 is: 70,569,511.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,046,138.21 : 113,258,533.25 = 51,121,586.42 : x
  2. Step 2: Convert to fraction form
    82,046,138.21/113,258,533.25 = 51,121,586.42/x
  3. Step 3: Cross multiply
    82,046,138.21x = 113,258,533.25 × 51,121,586.42
  4. Step 4: Simplify right side
    82,046,138.21x = 5,789,955,894,903,830
  5. Step 5: Solve for x
    x = 5,789,955,894,903,830/82,046,138.21
  6. Step 6: Final answer
    x = 70,569,511.52

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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.