Home / 614,191,136.28-921,286,704.42-205,247,286.80

Finding the Fourth Proportional to 614,191,136.28, 921,286,704.42 and 205,247,286.80

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Solution

The fourth proportional to 614,191,136.28, 921,286,704.42 and 205,247,286.80 is: 307,870,930.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,191,136.28 : 921,286,704.42 = 205,247,286.80 : x
  2. Step 2: Convert to fraction form
    614,191,136.28/921,286,704.42 = 205,247,286.80/x
  3. Step 3: Cross multiply
    614,191,136.28x = 921,286,704.42 × 205,247,286.80
  4. Step 4: Simplify right side
    614,191,136.28x = 189,091,596,447,118,560
  5. Step 5: Solve for x
    x = 189,091,596,447,118,560/614,191,136.28
  6. Step 6: Final answer
    x = 307,870,930.20

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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.