Home / 391,604,689.10-587,473,955.84-161,447,958.38

Finding the Fourth Proportional to 391,604,689.10, 587,473,955.84 and 161,447,958.38

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Solution

The fourth proportional to 391,604,689.10, 587,473,955.84 and 161,447,958.38 is: 242,199,527.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,604,689.10 : 587,473,955.84 = 161,447,958.38 : x
  2. Step 2: Convert to fraction form
    391,604,689.10/587,473,955.84 = 161,447,958.38/x
  3. Step 3: Cross multiply
    391,604,689.10x = 587,473,955.84 × 161,447,958.38
  4. Step 4: Simplify right side
    391,604,689.10x = 94,846,470,772,451,728
  5. Step 5: Solve for x
    x = 94,846,470,772,451,728/391,604,689.10
  6. Step 6: Final answer
    x = 242,199,527.77

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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.