Home / 499,296,056.40-748,645,486.20-257,431,352.40

Finding the Fourth Proportional to 499,296,056.40, 748,645,486.20 and 257,431,352.40

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Solution

The fourth proportional to 499,296,056.40, 748,645,486.20 and 257,431,352.40 is: 385,993,074.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,296,056.40 : 748,645,486.20 = 257,431,352.40 : x
  2. Step 2: Convert to fraction form
    499,296,056.40/748,645,486.20 = 257,431,352.40/x
  3. Step 3: Cross multiply
    499,296,056.40x = 748,645,486.20 × 257,431,352.40
  4. Step 4: Simplify right side
    499,296,056.40x = 192,724,819,980,621,568
  5. Step 5: Solve for x
    x = 192,724,819,980,621,568/499,296,056.40
  6. Step 6: Final answer
    x = 385,993,074.67

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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.