Home / 1,391,994,341.57-1,920,962,184.41-756,910,282.54

Finding the Fourth Proportional to 1,391,994,341.57, 1,920,962,184.41 and 756,910,282.54

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Solution

The fourth proportional to 1,391,994,341.57, 1,920,962,184.41 and 756,910,282.54 is: 1,044,541,623.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,994,341.57 : 1,920,962,184.41 = 756,910,282.54 : x
  2. Step 2: Convert to fraction form
    1,391,994,341.57/1,920,962,184.41 = 756,910,282.54/x
  3. Step 3: Cross multiply
    1,391,994,341.57x = 1,920,962,184.41 × 756,910,282.54
  4. Step 4: Simplify right side
    1,391,994,341.57x = 1,453,996,029,737,039,360
  5. Step 5: Solve for x
    x = 1,453,996,029,737,039,360/1,391,994,341.57
  6. Step 6: Final answer
    x = 1,044,541,623.71

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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.