Home / 921,286,688.06-1,381,930,032.13-307,870,913.81

Finding the Fourth Proportional to 921,286,688.06, 1,381,930,032.13 and 307,870,913.81

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Solution

The fourth proportional to 921,286,688.06, 1,381,930,032.13 and 307,870,913.81 is: 461,806,370.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,286,688.06 : 1,381,930,032.13 = 307,870,913.81 : x
  2. Step 2: Convert to fraction form
    921,286,688.06/1,381,930,032.13 = 307,870,913.81/x
  3. Step 3: Cross multiply
    921,286,688.06x = 1,381,930,032.13 × 307,870,913.81
  4. Step 4: Simplify right side
    921,286,688.06x = 425,456,061,816,030,912
  5. Step 5: Solve for x
    x = 425,456,061,816,030,912/921,286,688.06
  6. Step 6: Final answer
    x = 461,806,370.73

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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.