Home / 609,206,391.11-913,543,482.75-215,602,399.49

Finding the Fourth Proportional to 609,206,391.11, 913,543,482.75 and 215,602,399.49

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Solution

The fourth proportional to 609,206,391.11, 913,543,482.75 and 215,602,399.49 is: 323,309,423.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,206,391.11 : 913,543,482.75 = 215,602,399.49 : x
  2. Step 2: Convert to fraction form
    609,206,391.11/913,543,482.75 = 215,602,399.49/x
  3. Step 3: Cross multiply
    609,206,391.11x = 913,543,482.75 × 215,602,399.49
  4. Step 4: Simplify right side
    609,206,391.11x = 196,962,166,922,892,352
  5. Step 5: Solve for x
    x = 196,962,166,922,892,352/609,206,391.11
  6. Step 6: Final answer
    x = 323,309,423.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.