Home / 509,580,494.80-764,370,742.20-169,178,318.80

Finding the Fourth Proportional to 509,580,494.80, 764,370,742.20 and 169,178,318.80

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Solution

The fourth proportional to 509,580,494.80, 764,370,742.20 and 169,178,318.80 is: 253,767,478.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,580,494.80 : 764,370,742.20 = 169,178,318.80 : x
  2. Step 2: Convert to fraction form
    509,580,494.80/764,370,742.20 = 169,178,318.80/x
  3. Step 3: Cross multiply
    509,580,494.80x = 764,370,742.20 × 169,178,318.80
  4. Step 4: Simplify right side
    509,580,494.80x = 129,314,957,105,304,224
  5. Step 5: Solve for x
    x = 129,314,957,105,304,224/509,580,494.80
  6. Step 6: Final answer
    x = 253,767,478.20

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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.