Home / 868,345,511.20-1,302,120,135.60-383,421,709.60

Finding the Fourth Proportional to 868,345,511.20, 1,302,120,135.60 and 383,421,709.60

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Solution

The fourth proportional to 868,345,511.20, 1,302,120,135.60 and 383,421,709.60 is: 574,956,767.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,345,511.20 : 1,302,120,135.60 = 383,421,709.60 : x
  2. Step 2: Convert to fraction form
    868,345,511.20/1,302,120,135.60 = 383,421,709.60/x
  3. Step 3: Cross multiply
    868,345,511.20x = 1,302,120,135.60 × 383,421,709.60
  4. Step 4: Simplify right side
    868,345,511.20x = 499,261,128,496,335,808
  5. Step 5: Solve for x
    x = 499,261,128,496,335,808/868,345,511.20
  6. Step 6: Final answer
    x = 574,956,767.85

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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.