Home / 215,984,849.60-323,977,274.40-172,938,128.60

Finding the Fourth Proportional to 215,984,849.60, 323,977,274.40 and 172,938,128.60

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Solution

The fourth proportional to 215,984,849.60, 323,977,274.40 and 172,938,128.60 is: 259,407,192.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,984,849.60 : 323,977,274.40 = 172,938,128.60 : x
  2. Step 2: Convert to fraction form
    215,984,849.60/323,977,274.40 = 172,938,128.60/x
  3. Step 3: Cross multiply
    215,984,849.60x = 323,977,274.40 × 172,938,128.60
  4. Step 4: Simplify right side
    215,984,849.60x = 56,028,023,543,664,680
  5. Step 5: Solve for x
    x = 56,028,023,543,664,680/215,984,849.60
  6. Step 6: Final answer
    x = 259,407,192.90

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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.