Home / 402,393,081.84-603,823,876.20-169,206,938.16

Finding the Fourth Proportional to 402,393,081.84, 603,823,876.20 and 169,206,938.16

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Solution

The fourth proportional to 402,393,081.84, 603,823,876.20 and 169,206,938.16 is: 253,908,911.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,393,081.84 : 603,823,876.20 = 169,206,938.16 : x
  2. Step 2: Convert to fraction form
    402,393,081.84/603,823,876.20 = 169,206,938.16/x
  3. Step 3: Cross multiply
    402,393,081.84x = 603,823,876.20 × 169,206,938.16
  4. Step 4: Simplify right side
    402,393,081.84x = 102,171,189,279,704,896
  5. Step 5: Solve for x
    x = 102,171,189,279,704,896/402,393,081.84
  6. Step 6: Final answer
    x = 253,908,911.19

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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.