Home / 1,391,994,341.07-1,920,962,183.72-756,910,282.03

Finding the Fourth Proportional to 1,391,994,341.07, 1,920,962,183.72 and 756,910,282.03

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Solution

The fourth proportional to 1,391,994,341.07, 1,920,962,183.72 and 756,910,282.03 is: 1,044,541,623.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,994,341.07 : 1,920,962,183.72 = 756,910,282.03 : x
  2. Step 2: Convert to fraction form
    1,391,994,341.07/1,920,962,183.72 = 756,910,282.03/x
  3. Step 3: Cross multiply
    1,391,994,341.07x = 1,920,962,183.72 × 756,910,282.03
  4. Step 4: Simplify right side
    1,391,994,341.07x = 1,453,996,028,250,736,128
  5. Step 5: Solve for x
    x = 1,453,996,028,250,736,128/1,391,994,341.07
  6. Step 6: Final answer
    x = 1,044,541,623.01

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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.