Home / 139,913,258.52-209,896,787.88-53,644,937.12

Finding the Fourth Proportional to 139,913,258.52, 209,896,787.88 and 53,644,937.12

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Solution

The fourth proportional to 139,913,258.52, 209,896,787.88 and 53,644,937.12 is: 80,477,719.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,913,258.52 : 209,896,787.88 = 53,644,937.12 : x
  2. Step 2: Convert to fraction form
    139,913,258.52/209,896,787.88 = 53,644,937.12/x
  3. Step 3: Cross multiply
    139,913,258.52x = 209,896,787.88 × 53,644,937.12
  4. Step 4: Simplify right side
    139,913,258.52x = 11,259,899,986,463,094
  5. Step 5: Solve for x
    x = 11,259,899,986,463,094/139,913,258.52
  6. Step 6: Final answer
    x = 80,477,719.59

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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.