Home / 375,865,822.70-518,688,471.11-210,849,849.26

Finding the Fourth Proportional to 375,865,822.70, 518,688,471.11 and 210,849,849.26

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Solution

The fourth proportional to 375,865,822.70, 518,688,471.11 and 210,849,849.26 is: 290,969,221.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,865,822.70 : 518,688,471.11 = 210,849,849.26 : x
  2. Step 2: Convert to fraction form
    375,865,822.70/518,688,471.11 = 210,849,849.26/x
  3. Step 3: Cross multiply
    375,865,822.70x = 518,688,471.11 × 210,849,849.26
  4. Step 4: Simplify right side
    375,865,822.70x = 109,365,385,942,795,680
  5. Step 5: Solve for x
    x = 109,365,385,942,795,680/375,865,822.70
  6. Step 6: Final answer
    x = 290,969,221.83

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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.