Home / 449,725,983.50-620,638,804.87-251,487,031.30

Finding the Fourth Proportional to 449,725,983.50, 620,638,804.87 and 251,487,031.30

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Solution

The fourth proportional to 449,725,983.50, 620,638,804.87 and 251,487,031.30 is: 347,061,580.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,725,983.50 : 620,638,804.87 = 251,487,031.30 : x
  2. Step 2: Convert to fraction form
    449,725,983.50/620,638,804.87 = 251,487,031.30/x
  3. Step 3: Cross multiply
    449,725,983.50x = 620,638,804.87 × 251,487,031.30
  4. Step 4: Simplify right side
    449,725,983.50x = 156,082,610,544,155,968
  5. Step 5: Solve for x
    x = 156,082,610,544,155,968/449,725,983.50
  6. Step 6: Final answer
    x = 347,061,580.32

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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.