Home / 384,796,939.33-531,015,803.85-215,248,979.39

Finding the Fourth Proportional to 384,796,939.33, 531,015,803.85 and 215,248,979.39

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Solution

The fourth proportional to 384,796,939.33, 531,015,803.85 and 215,248,979.39 is: 297,041,369.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,796,939.33 : 531,015,803.85 = 215,248,979.39 : x
  2. Step 2: Convert to fraction form
    384,796,939.33/531,015,803.85 = 215,248,979.39/x
  3. Step 3: Cross multiply
    384,796,939.33x = 531,015,803.85 × 215,248,979.39
  4. Step 4: Simplify right side
    384,796,939.33x = 114,300,609,818,597,488
  5. Step 5: Solve for x
    x = 114,300,609,818,597,488/384,796,939.33
  6. Step 6: Final answer
    x = 297,041,369.45

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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.