Home / 1,247,632,221.84-1,721,732,872.68-683,152,874.52

Finding the Fourth Proportional to 1,247,632,221.84, 1,721,732,872.68 and 683,152,874.52

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Solution

The fourth proportional to 1,247,632,221.84, 1,721,732,872.68 and 683,152,874.52 is: 942,751,189.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,632,221.84 : 1,721,732,872.68 = 683,152,874.52 : x
  2. Step 2: Convert to fraction form
    1,247,632,221.84/1,721,732,872.68 = 683,152,874.52/x
  3. Step 3: Cross multiply
    1,247,632,221.84x = 1,721,732,872.68 × 683,152,874.52
  4. Step 4: Simplify right side
    1,247,632,221.84x = 1,176,206,761,126,919,168
  5. Step 5: Solve for x
    x = 1,176,206,761,126,919,168/1,247,632,221.84
  6. Step 6: Final answer
    x = 942,751,189.44

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1.5x scale

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.