Home / 919,784,875.60-1,377,661,774.20-817,664,222.80

Finding the Fourth Proportional to 919,784,875.60, 1,377,661,774.20 and 817,664,222.80

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Solution

The fourth proportional to 919,784,875.60, 1,377,661,774.20 and 817,664,222.80 is: 1,224,704,573.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,784,875.60 : 1,377,661,774.20 = 817,664,222.80 : x
  2. Step 2: Convert to fraction form
    919,784,875.60/1,377,661,774.20 = 817,664,222.80/x
  3. Step 3: Cross multiply
    919,784,875.60x = 1,377,661,774.20 × 817,664,222.80
  4. Step 4: Simplify right side
    919,784,875.60x = 1,126,464,743,882,512,128
  5. Step 5: Solve for x
    x = 1,126,464,743,882,512,128/919,784,875.60
  6. Step 6: Final answer
    x = 1,224,704,573.61

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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.