Home / 1,189,723,855,977.20-1,784,935,915,108.30-383,875,679,140.12

Finding the Fourth Proportional to 1,189,723,855,977.20, 1,784,935,915,108.30 and 383,875,679,140.12

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Solution

The fourth proportional to 1,189,723,855,977.20, 1,784,935,915,108.30 and 383,875,679,140.12 is: 575,926,491,842.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,723,855,977.20 : 1,784,935,915,108.30 = 383,875,679,140.12 : x
  2. Step 2: Convert to fraction form
    1,189,723,855,977.20/1,784,935,915,108.30 = 383,875,679,140.12/x
  3. Step 3: Cross multiply
    1,189,723,855,977.20x = 1,784,935,915,108.30 × 383,875,679,140.12
  4. Step 4: Simplify right side
    1,189,723,855,977.20x = 685,193,486,633,790,248,845,312
  5. Step 5: Solve for x
    x = 685,193,486,633,790,248,845,312/1,189,723,855,977.20
  6. Step 6: Final answer
    x = 575,926,491,842.09

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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.