Home / 386,731,850.16-533,690,010.80-210,521,183.24

Finding the Fourth Proportional to 386,731,850.16, 533,690,010.80 and 210,521,183.24

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Solution

The fourth proportional to 386,731,850.16, 533,690,010.80 and 210,521,183.24 is: 290,519,264.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,731,850.16 : 533,690,010.80 = 210,521,183.24 : x
  2. Step 2: Convert to fraction form
    386,731,850.16/533,690,010.80 = 210,521,183.24/x
  3. Step 3: Cross multiply
    386,731,850.16x = 533,690,010.80 × 210,521,183.24
  4. Step 4: Simplify right side
    386,731,850.16x = 112,353,052,553,263,328
  5. Step 5: Solve for x
    x = 112,353,052,553,263,328/386,731,850.16
  6. Step 6: Final answer
    x = 290,519,264.21

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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.