Home / 780,048,229.92-1,076,534,658.71-427,692,321.98

Finding the Fourth Proportional to 780,048,229.92, 1,076,534,658.71 and 427,692,321.98

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Solution

The fourth proportional to 780,048,229.92, 1,076,534,658.71 and 427,692,321.98 is: 590,252,743.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,048,229.92 : 1,076,534,658.71 = 427,692,321.98 : x
  2. Step 2: Convert to fraction form
    780,048,229.92/1,076,534,658.71 = 427,692,321.98/x
  3. Step 3: Cross multiply
    780,048,229.92x = 1,076,534,658.71 × 427,692,321.98
  4. Step 4: Simplify right side
    780,048,229.92x = 460,425,607,868,105,600
  5. Step 5: Solve for x
    x = 460,425,607,868,105,600/780,048,229.92
  6. Step 6: Final answer
    x = 590,252,743.62

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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.