Home / 400,403,380.40-600,605,070.60-170,379,969.20

Finding the Fourth Proportional to 400,403,380.40, 600,605,070.60 and 170,379,969.20

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Solution

The fourth proportional to 400,403,380.40, 600,605,070.60 and 170,379,969.20 is: 255,569,953.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,403,380.40 : 600,605,070.60 = 170,379,969.20 : x
  2. Step 2: Convert to fraction form
    400,403,380.40/600,605,070.60 = 170,379,969.20/x
  3. Step 3: Cross multiply
    400,403,380.40x = 600,605,070.60 × 170,379,969.20
  4. Step 4: Simplify right side
    400,403,380.40x = 102,331,073,430,191,824
  5. Step 5: Solve for x
    x = 102,331,073,430,191,824/400,403,380.40
  6. Step 6: Final answer
    x = 255,569,953.80

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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.