Home / 311,879,094.80-430,398,247.51-170,747,960.72

Finding the Fourth Proportional to 311,879,094.80, 430,398,247.51 and 170,747,960.72

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Solution

The fourth proportional to 311,879,094.80, 430,398,247.51 and 170,747,960.72 is: 235,634,976.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,879,094.80 : 430,398,247.51 = 170,747,960.72 : x
  2. Step 2: Convert to fraction form
    311,879,094.80/430,398,247.51 = 170,747,960.72/x
  3. Step 3: Cross multiply
    311,879,094.80x = 430,398,247.51 × 170,747,960.72
  4. Step 4: Simplify right side
    311,879,094.80x = 73,489,623,057,855,760
  5. Step 5: Solve for x
    x = 73,489,623,057,855,760/311,879,094.80
  6. Step 6: Final answer
    x = 235,634,976.13

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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.