Home / 402,225,904.80-603,338,857.20-218,559,895.20

Finding the Fourth Proportional to 402,225,904.80, 603,338,857.20 and 218,559,895.20

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Solution

The fourth proportional to 402,225,904.80, 603,338,857.20 and 218,559,895.20 is: 327,839,842.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,225,904.80 : 603,338,857.20 = 218,559,895.20 : x
  2. Step 2: Convert to fraction form
    402,225,904.80/603,338,857.20 = 218,559,895.20/x
  3. Step 3: Cross multiply
    402,225,904.80x = 603,338,857.20 × 218,559,895.20
  4. Step 4: Simplify right side
    402,225,904.80x = 131,865,677,399,719,776
  5. Step 5: Solve for x
    x = 131,865,677,399,719,776/402,225,904.80
  6. Step 6: Final answer
    x = 327,839,842.80

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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.