Home / 311,072,509.32-429,293,104.38-178,913,542.74

Finding the Fourth Proportional to 311,072,509.32, 429,293,104.38 and 178,913,542.74

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Solution

The fourth proportional to 311,072,509.32, 429,293,104.38 and 178,913,542.74 is: 246,908,189.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,072,509.32 : 429,293,104.38 = 178,913,542.74 : x
  2. Step 2: Convert to fraction form
    311,072,509.32/429,293,104.38 = 178,913,542.74/x
  3. Step 3: Cross multiply
    311,072,509.32x = 429,293,104.38 × 178,913,542.74
  4. Step 4: Simplify right side
    311,072,509.32x = 76,806,350,178,478,416
  5. Step 5: Solve for x
    x = 76,806,350,178,478,416/311,072,509.32
  6. Step 6: Final answer
    x = 246,908,189.82

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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.