Home / 384,782,979.06-531,007,314.93-208,576,826.10

Finding the Fourth Proportional to 384,782,979.06, 531,007,314.93 and 208,576,826.10

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Solution

The fourth proportional to 384,782,979.06, 531,007,314.93 and 208,576,826.10 is: 287,839,708.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,782,979.06 : 531,007,314.93 = 208,576,826.10 : x
  2. Step 2: Convert to fraction form
    384,782,979.06/531,007,314.93 = 208,576,826.10/x
  3. Step 3: Cross multiply
    384,782,979.06x = 531,007,314.93 × 208,576,826.10
  4. Step 4: Simplify right side
    384,782,979.06x = 110,755,820,383,982,544
  5. Step 5: Solve for x
    x = 110,755,820,383,982,544/384,782,979.06
  6. Step 6: Final answer
    x = 287,839,708.12

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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.