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Finding the Fourth Proportional to 259,549,914.60, 389,324,871.90 and 239,842,420.20

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Solution

The fourth proportional to 259,549,914.60, 389,324,871.90 and 239,842,420.20 is: 359,763,630.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,549,914.60 : 389,324,871.90 = 239,842,420.20 : x
  2. Step 2: Convert to fraction form
    259,549,914.60/389,324,871.90 = 239,842,420.20/x
  3. Step 3: Cross multiply
    259,549,914.60x = 389,324,871.90 × 239,842,420.20
  4. Step 4: Simplify right side
    259,549,914.60x = 93,376,619,520,550,960
  5. Step 5: Solve for x
    x = 93,376,619,520,550,960/259,549,914.60
  6. Step 6: Final answer
    x = 359,763,630.30

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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.