Home / 278,176,105.71-383,863,823.01-154,407,039.75

Finding the Fourth Proportional to 278,176,105.71, 383,863,823.01 and 154,407,039.75

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Solution

The fourth proportional to 278,176,105.71, 383,863,823.01 and 154,407,039.75 is: 213,071,055.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,176,105.71 : 383,863,823.01 = 154,407,039.75 : x
  2. Step 2: Convert to fraction form
    278,176,105.71/383,863,823.01 = 154,407,039.75/x
  3. Step 3: Cross multiply
    278,176,105.71x = 383,863,823.01 × 154,407,039.75
  4. Step 4: Simplify right side
    278,176,105.71x = 59,271,276,578,092,032
  5. Step 5: Solve for x
    x = 59,271,276,578,092,032/278,176,105.71
  6. Step 6: Final answer
    x = 213,071,055.93

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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.