Home / 780,109,213.80-1,076,550,455.94-427,677,637.70

Finding the Fourth Proportional to 780,109,213.80, 1,076,550,455.94 and 427,677,637.70

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Solution

The fourth proportional to 780,109,213.80, 1,076,550,455.94 and 427,677,637.70 is: 590,194,997.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,109,213.80 : 1,076,550,455.94 = 427,677,637.70 : x
  2. Step 2: Convert to fraction form
    780,109,213.80/1,076,550,455.94 = 427,677,637.70/x
  3. Step 3: Cross multiply
    780,109,213.80x = 1,076,550,455.94 × 427,677,637.70
  4. Step 4: Simplify right side
    780,109,213.80x = 460,416,555,861,277,120
  5. Step 5: Solve for x
    x = 460,416,555,861,277,120/780,109,213.80
  6. Step 6: Final answer
    x = 590,194,997.98

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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.