Home / 347,857,331.40-521,785,997.10-143,280,102.60

Finding the Fourth Proportional to 347,857,331.40, 521,785,997.10 and 143,280,102.60

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Solution

The fourth proportional to 347,857,331.40, 521,785,997.10 and 143,280,102.60 is: 214,920,153.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,857,331.40 : 521,785,997.10 = 143,280,102.60 : x
  2. Step 2: Convert to fraction form
    347,857,331.40/521,785,997.10 = 143,280,102.60/x
  3. Step 3: Cross multiply
    347,857,331.40x = 521,785,997.10 × 143,280,102.60
  4. Step 4: Simplify right side
    347,857,331.40x = 74,761,551,199,731,296
  5. Step 5: Solve for x
    x = 74,761,551,199,731,296/347,857,331.40
  6. Step 6: Final answer
    x = 214,920,153.90

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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.