Home / 28,615,688.80-42,923,792.69-8,145,400.33

Finding the Fourth Proportional to 28,615,688.80, 42,923,792.69 and 8,145,400.33

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Solution

The fourth proportional to 28,615,688.80, 42,923,792.69 and 8,145,400.33 is: 12,218,174.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615,688.80 : 42,923,792.69 = 8,145,400.33 : x
  2. Step 2: Convert to fraction form
    28,615,688.80/42,923,792.69 = 8,145,400.33/x
  3. Step 3: Cross multiply
    28,615,688.80x = 42,923,792.69 × 8,145,400.33
  4. Step 4: Simplify right side
    28,615,688.80x = 349,631,475,141,977.56
  5. Step 5: Solve for x
    x = 349,631,475,141,977.56/28,615,688.80
  6. Step 6: Final answer
    x = 12,218,174.36

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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.