Home / 921,286,692-1,381,930,038-307,870,917.75

Finding the Fourth Proportional to 921,286,692, 1,381,930,038 and 307,870,917.75

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Solution

The fourth proportional to 921,286,692, 1,381,930,038 and 307,870,917.75 is: 461,806,376.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,286,692 : 1,381,930,038 = 307,870,917.75 : x
  2. Step 2: Convert to fraction form
    921,286,692/1,381,930,038 = 307,870,917.75/x
  3. Step 3: Cross multiply
    921,286,692x = 1,381,930,038 × 307,870,917.75
  4. Step 4: Simplify right side
    921,286,692x = 425,456,069,065,352,384
  5. Step 5: Solve for x
    x = 425,456,069,065,352,384/921,286,692
  6. Step 6: Final answer
    x = 461,806,376.63

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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.