Home / 293,318,472.40-440,313,631.80-172,218,158.80

Finding the Fourth Proportional to 293,318,472.40, 440,313,631.80 and 172,218,158.80

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Solution

The fourth proportional to 293,318,472.40, 440,313,631.80 and 172,218,158.80 is: 258,524,471.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,318,472.40 : 440,313,631.80 = 172,218,158.80 : x
  2. Step 2: Convert to fraction form
    293,318,472.40/440,313,631.80 = 172,218,158.80/x
  3. Step 3: Cross multiply
    293,318,472.40x = 440,313,631.80 × 172,218,158.80
  4. Step 4: Simplify right side
    293,318,472.40x = 75,830,002,963,137,136
  5. Step 5: Solve for x
    x = 75,830,002,963,137,136/293,318,472.40
  6. Step 6: Final answer
    x = 258,524,471.18

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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.