Home / 402,313,720.80-603,612,298.80-197,704,999.20

Finding the Fourth Proportional to 402,313,720.80, 603,612,298.80 and 197,704,999.20

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Solution

The fourth proportional to 402,313,720.80, 603,612,298.80 and 197,704,999.20 is: 296,627,141.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,313,720.80 : 603,612,298.80 = 197,704,999.20 : x
  2. Step 2: Convert to fraction form
    402,313,720.80/603,612,298.80 = 197,704,999.20/x
  3. Step 3: Cross multiply
    402,313,720.80x = 603,612,298.80 × 197,704,999.20
  4. Step 4: Simplify right side
    402,313,720.80x = 119,337,169,051,364,144
  5. Step 5: Solve for x
    x = 119,337,169,051,364,144/402,313,720.80
  6. Step 6: Final answer
    x = 296,627,141.66

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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.