Home / 260,728,812.60-391,140,458.10-131,009,969.40

Finding the Fourth Proportional to 260,728,812.60, 391,140,458.10 and 131,009,969.40

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Solution

The fourth proportional to 260,728,812.60, 391,140,458.10 and 131,009,969.40 is: 196,538,690.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,728,812.60 : 391,140,458.10 = 131,009,969.40 : x
  2. Step 2: Convert to fraction form
    260,728,812.60/391,140,458.10 = 131,009,969.40/x
  3. Step 3: Cross multiply
    260,728,812.60x = 391,140,458.10 × 131,009,969.40
  4. Step 4: Simplify right side
    260,728,812.60x = 51,243,299,446,782,984
  5. Step 5: Solve for x
    x = 51,243,299,446,782,984/260,728,812.60
  6. Step 6: Final answer
    x = 196,538,690.66

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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.