Home / 281,208,091.68-387,983,222.46-181,931,632.38

Finding the Fourth Proportional to 281,208,091.68, 387,983,222.46 and 181,931,632.38

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Solution

The fourth proportional to 281,208,091.68, 387,983,222.46 and 181,931,632.38 is: 251,011,343.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,208,091.68 : 387,983,222.46 = 181,931,632.38 : x
  2. Step 2: Convert to fraction form
    281,208,091.68/387,983,222.46 = 181,931,632.38/x
  3. Step 3: Cross multiply
    281,208,091.68x = 387,983,222.46 × 181,931,632.38
  4. Step 4: Simplify right side
    281,208,091.68x = 70,586,420,998,200,472
  5. Step 5: Solve for x
    x = 70,586,420,998,200,472/281,208,091.68
  6. Step 6: Final answer
    x = 251,011,343.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.