Home / 1,311,753,910.14-1,967,630,865.35-438,355,278.47

Finding the Fourth Proportional to 1,311,753,910.14, 1,967,630,865.35 and 438,355,278.47

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Solution

The fourth proportional to 1,311,753,910.14, 1,967,630,865.35 and 438,355,278.47 is: 657,532,917.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,753,910.14 : 1,967,630,865.35 = 438,355,278.47 : x
  2. Step 2: Convert to fraction form
    1,311,753,910.14/1,967,630,865.35 = 438,355,278.47/x
  3. Step 3: Cross multiply
    1,311,753,910.14x = 1,967,630,865.35 × 438,355,278.47
  4. Step 4: Simplify right side
    1,311,753,910.14x = 862,521,375,894,636,416
  5. Step 5: Solve for x
    x = 862,521,375,894,636,416/1,311,753,910.14
  6. Step 6: Final answer
    x = 657,532,917.74

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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.