Home / 580,665,555.12-800,780,211-423,784,167.60

Finding the Fourth Proportional to 580,665,555.12, 800,780,211 and 423,784,167.60

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Solution

The fourth proportional to 580,665,555.12, 800,780,211 and 423,784,167.60 is: 584,429,319.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,665,555.12 : 800,780,211 = 423,784,167.60 : x
  2. Step 2: Convert to fraction form
    580,665,555.12/800,780,211 = 423,784,167.60/x
  3. Step 3: Cross multiply
    580,665,555.12x = 800,780,211 × 423,784,167.60
  4. Step 4: Simplify right side
    580,665,555.12x = 339,357,975,149,187,392
  5. Step 5: Solve for x
    x = 339,357,975,149,187,392/580,665,555.12
  6. Step 6: Final answer
    x = 584,429,319.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.