Home / 279,936,709.60-419,905,064.40-177,816,056.80

Finding the Fourth Proportional to 279,936,709.60, 419,905,064.40 and 177,816,056.80

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Solution

The fourth proportional to 279,936,709.60, 419,905,064.40 and 177,816,056.80 is: 266,724,085.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,709.60 : 419,905,064.40 = 177,816,056.80 : x
  2. Step 2: Convert to fraction form
    279,936,709.60/419,905,064.40 = 177,816,056.80/x
  3. Step 3: Cross multiply
    279,936,709.60x = 419,905,064.40 × 177,816,056.80
  4. Step 4: Simplify right side
    279,936,709.60x = 74,665,862,781,958,064
  5. Step 5: Solve for x
    x = 74,665,862,781,958,064/279,936,709.60
  6. Step 6: Final answer
    x = 266,724,085.20

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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.