Home / 813,623,356.12-1,123,039,185.96-531,408,940.72

Finding the Fourth Proportional to 813,623,356.12, 1,123,039,185.96 and 531,408,940.72

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Solution

The fourth proportional to 813,623,356.12, 1,123,039,185.96 and 531,408,940.72 is: 733,500,408.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,623,356.12 : 1,123,039,185.96 = 531,408,940.72 : x
  2. Step 2: Convert to fraction form
    813,623,356.12/1,123,039,185.96 = 531,408,940.72/x
  3. Step 3: Cross multiply
    813,623,356.12x = 1,123,039,185.96 × 531,408,940.72
  4. Step 4: Simplify right side
    813,623,356.12x = 596,793,064,198,054,784
  5. Step 5: Solve for x
    x = 596,793,064,198,054,784/813,623,356.12
  6. Step 6: Final answer
    x = 733,500,408.65

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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.