Home / 788,807,872.80-1,183,211,809.20-758,675,168.10

Finding the Fourth Proportional to 788,807,872.80, 1,183,211,809.20 and 758,675,168.10

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Solution

The fourth proportional to 788,807,872.80, 1,183,211,809.20 and 758,675,168.10 is: 1,138,012,752.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,807,872.80 : 1,183,211,809.20 = 758,675,168.10 : x
  2. Step 2: Convert to fraction form
    788,807,872.80/1,183,211,809.20 = 758,675,168.10/x
  3. Step 3: Cross multiply
    788,807,872.80x = 1,183,211,809.20 × 758,675,168.10
  4. Step 4: Simplify right side
    788,807,872.80x = 897,673,418,242,715,136
  5. Step 5: Solve for x
    x = 897,673,418,242,715,136/788,807,872.80
  6. Step 6: Final answer
    x = 1,138,012,752.15

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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.