Home / 880,206,871.90-1,320,310,307.85-813,694,078.30

Finding the Fourth Proportional to 880,206,871.90, 1,320,310,307.85 and 813,694,078.30

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Solution

The fourth proportional to 880,206,871.90, 1,320,310,307.85 and 813,694,078.30 is: 1,220,541,117.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,206,871.90 : 1,320,310,307.85 = 813,694,078.30 : x
  2. Step 2: Convert to fraction form
    880,206,871.90/1,320,310,307.85 = 813,694,078.30/x
  3. Step 3: Cross multiply
    880,206,871.90x = 1,320,310,307.85 × 813,694,078.30
  4. Step 4: Simplify right side
    880,206,871.90x = 1,074,328,679,015,994,880
  5. Step 5: Solve for x
    x = 1,074,328,679,015,994,880/880,206,871.90
  6. Step 6: Final answer
    x = 1,220,541,117.45

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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.