Home / 28,615,688.66-42,923,792.46-8,145,400.19

Finding the Fourth Proportional to 28,615,688.66, 42,923,792.46 and 8,145,400.19

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Solution

The fourth proportional to 28,615,688.66, 42,923,792.46 and 8,145,400.19 is: 12,218,174.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615,688.66 : 42,923,792.46 = 8,145,400.19 : x
  2. Step 2: Convert to fraction form
    28,615,688.66/42,923,792.46 = 8,145,400.19/x
  3. Step 3: Cross multiply
    28,615,688.66x = 42,923,792.46 × 8,145,400.19
  4. Step 4: Simplify right side
    28,615,688.66x = 349,631,467,044,585.62
  5. Step 5: Solve for x
    x = 349,631,467,044,585.62/28,615,688.66
  6. Step 6: Final answer
    x = 12,218,174.14

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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.