Home / 780,048,234.42-1,076,534,664.92-427,692,326.48

Finding the Fourth Proportional to 780,048,234.42, 1,076,534,664.92 and 427,692,326.48

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Solution

The fourth proportional to 780,048,234.42, 1,076,534,664.92 and 427,692,326.48 is: 590,252,749.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,048,234.42 : 1,076,534,664.92 = 427,692,326.48 : x
  2. Step 2: Convert to fraction form
    780,048,234.42/1,076,534,664.92 = 427,692,326.48/x
  3. Step 3: Cross multiply
    780,048,234.42x = 1,076,534,664.92 × 427,692,326.48
  4. Step 4: Simplify right side
    780,048,234.42x = 460,425,615,376,002,112
  5. Step 5: Solve for x
    x = 460,425,615,376,002,112/780,048,234.42
  6. Step 6: Final answer
    x = 590,252,749.84

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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.