Home / 148,988,685.75-205,602,754.62-82,006,211.79

Finding the Fourth Proportional to 148,988,685.75, 205,602,754.62 and 82,006,211.79

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Solution

The fourth proportional to 148,988,685.75, 205,602,754.62 and 82,006,211.79 is: 113,167,674.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,988,685.75 : 205,602,754.62 = 82,006,211.79 : x
  2. Step 2: Convert to fraction form
    148,988,685.75/205,602,754.62 = 82,006,211.79/x
  3. Step 3: Cross multiply
    148,988,685.75x = 205,602,754.62 × 82,006,211.79
  4. Step 4: Simplify right side
    148,988,685.75x = 16,860,703,039,975,122
  5. Step 5: Solve for x
    x = 16,860,703,039,975,122/148,988,685.75
  6. Step 6: Final answer
    x = 113,167,674.14

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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.