Home / 663,435,684.75-915,872,699.94-412,620,923.82

Finding the Fourth Proportional to 663,435,684.75, 915,872,699.94 and 412,620,923.82

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Solution

The fourth proportional to 663,435,684.75, 915,872,699.94 and 412,620,923.82 is: 569,623,021.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,435,684.75 : 915,872,699.94 = 412,620,923.82 : x
  2. Step 2: Convert to fraction form
    663,435,684.75/915,872,699.94 = 412,620,923.82/x
  3. Step 3: Cross multiply
    663,435,684.75x = 915,872,699.94 × 412,620,923.82
  4. Step 4: Simplify right side
    663,435,684.75x = 377,908,239,550,760,448
  5. Step 5: Solve for x
    x = 377,908,239,550,760,448/663,435,684.75
  6. Step 6: Final answer
    x = 569,623,021.85

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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.