Home / 921,286,704.42-1,381,930,056.63-307,870,930.20

Finding the Fourth Proportional to 921,286,704.42, 1,381,930,056.63 and 307,870,930.20

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Solution

The fourth proportional to 921,286,704.42, 1,381,930,056.63 and 307,870,930.20 is: 461,806,395.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,286,704.42 : 1,381,930,056.63 = 307,870,930.20 : x
  2. Step 2: Convert to fraction form
    921,286,704.42/1,381,930,056.63 = 307,870,930.20/x
  3. Step 3: Cross multiply
    921,286,704.42x = 1,381,930,056.63 × 307,870,930.20
  4. Step 4: Simplify right side
    921,286,704.42x = 425,456,092,006,016,768
  5. Step 5: Solve for x
    x = 425,456,092,006,016,768/921,286,704.42
  6. Step 6: Final answer
    x = 461,806,395.30

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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.