Home / 260,842,405.60-391,310,847.60-131,123,562.40

Finding the Fourth Proportional to 260,842,405.60, 391,310,847.60 and 131,123,562.40

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Solution

The fourth proportional to 260,842,405.60, 391,310,847.60 and 131,123,562.40 is: 196,709,090.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,842,405.60 : 391,310,847.60 = 131,123,562.40 : x
  2. Step 2: Convert to fraction form
    260,842,405.60/391,310,847.60 = 131,123,562.40/x
  3. Step 3: Cross multiply
    260,842,405.60x = 391,310,847.60 × 131,123,562.40
  4. Step 4: Simplify right side
    260,842,405.60x = 51,310,072,343,075,496
  5. Step 5: Solve for x
    x = 51,310,072,343,075,496/260,842,405.60
  6. Step 6: Final answer
    x = 196,709,090.40

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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.