Home / 459,488,761.76-689,239,140.36-152,780,874.56

Finding the Fourth Proportional to 459,488,761.76, 689,239,140.36 and 152,780,874.56

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Solution

The fourth proportional to 459,488,761.76, 689,239,140.36 and 152,780,874.56 is: 229,173,306.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,488,761.76 : 689,239,140.36 = 152,780,874.56 : x
  2. Step 2: Convert to fraction form
    459,488,761.76/689,239,140.36 = 152,780,874.56/x
  3. Step 3: Cross multiply
    459,488,761.76x = 689,239,140.36 × 152,780,874.56
  4. Step 4: Simplify right side
    459,488,761.76x = 105,302,558,645,183,392
  5. Step 5: Solve for x
    x = 105,302,558,645,183,392/459,488,761.76
  6. Step 6: Final answer
    x = 229,173,306.09

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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.