Home / 354,620,672.40-531,931,008.60-191,361,997.20

Finding the Fourth Proportional to 354,620,672.40, 531,931,008.60 and 191,361,997.20

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Solution

The fourth proportional to 354,620,672.40, 531,931,008.60 and 191,361,997.20 is: 287,042,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,620,672.40 : 531,931,008.60 = 191,361,997.20 : x
  2. Step 2: Convert to fraction form
    354,620,672.40/531,931,008.60 = 191,361,997.20/x
  3. Step 3: Cross multiply
    354,620,672.40x = 531,931,008.60 × 191,361,997.20
  4. Step 4: Simplify right side
    354,620,672.40x = 101,791,380,178,306,368
  5. Step 5: Solve for x
    x = 101,791,380,178,306,368/354,620,672.40
  6. Step 6: Final answer
    x = 287,042,995.80

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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.