Home / 1,311,753,911.89-1,967,630,867.97-438,355,280.22

Finding the Fourth Proportional to 1,311,753,911.89, 1,967,630,867.97 and 438,355,280.22

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Solution

The fourth proportional to 1,311,753,911.89, 1,967,630,867.97 and 438,355,280.22 is: 657,532,920.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,753,911.89 : 1,967,630,867.97 = 438,355,280.22 : x
  2. Step 2: Convert to fraction form
    1,311,753,911.89/1,967,630,867.97 = 438,355,280.22/x
  3. Step 3: Cross multiply
    1,311,753,911.89x = 1,967,630,867.97 × 438,355,280.22
  4. Step 4: Simplify right side
    1,311,753,911.89x = 862,521,380,488,673,024
  5. Step 5: Solve for x
    x = 862,521,380,488,673,024/1,311,753,911.89
  6. Step 6: Final answer
    x = 657,532,920.37

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Double scale
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1.5x scale

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.