Home / 144,981,867.20-217,472,800.80-139,408,030.40

Finding the Fourth Proportional to 144,981,867.20, 217,472,800.80 and 139,408,030.40

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Solution

The fourth proportional to 144,981,867.20, 217,472,800.80 and 139,408,030.40 is: 209,112,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,981,867.20 : 217,472,800.80 = 139,408,030.40 : x
  2. Step 2: Convert to fraction form
    144,981,867.20/217,472,800.80 = 139,408,030.40/x
  3. Step 3: Cross multiply
    144,981,867.20x = 217,472,800.80 × 139,408,030.40
  4. Step 4: Simplify right side
    144,981,867.20x = 30,317,454,825,099,548
  5. Step 5: Solve for x
    x = 30,317,454,825,099,548/144,981,867.20
  6. Step 6: Final answer
    x = 209,112,045.60

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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.