Home / 155,430,839.89-214,497,544.61-84,869,247.81

Finding the Fourth Proportional to 155,430,839.89, 214,497,544.61 and 84,869,247.81

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Solution

The fourth proportional to 155,430,839.89, 214,497,544.61 and 84,869,247.81 is: 117,121,192.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,430,839.89 : 214,497,544.61 = 84,869,247.81 : x
  2. Step 2: Convert to fraction form
    155,430,839.89/214,497,544.61 = 84,869,247.81/x
  3. Step 3: Cross multiply
    155,430,839.89x = 214,497,544.61 × 84,869,247.81
  4. Step 4: Simplify right side
    155,430,839.89x = 18,204,245,267,070,136
  5. Step 5: Solve for x
    x = 18,204,245,267,070,136/155,430,839.89
  6. Step 6: Final answer
    x = 117,121,192.16

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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.