Home / 1,940,220,892.80-2,910,356,222.40-647,756,380.80

Finding the Fourth Proportional to 1,940,220,892.80, 2,910,356,222.40 and 647,756,380.80

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Solution

The fourth proportional to 1,940,220,892.80, 2,910,356,222.40 and 647,756,380.80 is: 971,642,878.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940,220,892.80 : 2,910,356,222.40 = 647,756,380.80 : x
  2. Step 2: Convert to fraction form
    1,940,220,892.80/2,910,356,222.40 = 647,756,380.80/x
  3. Step 3: Cross multiply
    1,940,220,892.80x = 2,910,356,222.40 × 647,756,380.80
  4. Step 4: Simplify right side
    1,940,220,892.80x = 1,885,201,813,460,583,936
  5. Step 5: Solve for x
    x = 1,885,201,813,460,583,936/1,940,220,892.80
  6. Step 6: Final answer
    x = 971,642,878.63

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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.