Home / 678,453,518.40-1,017,869,234.40-333,418,401.60

Finding the Fourth Proportional to 678,453,518.40, 1,017,869,234.40 and 333,418,401.60

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Solution

The fourth proportional to 678,453,518.40, 1,017,869,234.40 and 333,418,401.60 is: 500,220,463.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,453,518.40 : 1,017,869,234.40 = 333,418,401.60 : x
  2. Step 2: Convert to fraction form
    678,453,518.40/1,017,869,234.40 = 333,418,401.60/x
  3. Step 3: Cross multiply
    678,453,518.40x = 1,017,869,234.40 × 333,418,401.60
  4. Step 4: Simplify right side
    678,453,518.40x = 339,376,333,171,463,744
  5. Step 5: Solve for x
    x = 339,376,333,171,463,744/678,453,518.40
  6. Step 6: Final answer
    x = 500,220,463.11

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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.