Home / 690,355,355.60-952,683,952.20-377,089,449.68

Finding the Fourth Proportional to 690,355,355.60, 952,683,952.20 and 377,089,449.68

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Solution

The fourth proportional to 690,355,355.60, 952,683,952.20 and 377,089,449.68 is: 520,379,923.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,355,355.60 : 952,683,952.20 = 377,089,449.68 : x
  2. Step 2: Convert to fraction form
    690,355,355.60/952,683,952.20 = 377,089,449.68/x
  3. Step 3: Cross multiply
    690,355,355.60x = 952,683,952.20 × 377,089,449.68
  4. Step 4: Simplify right side
    690,355,355.60x = 359,247,067,254,065,472
  5. Step 5: Solve for x
    x = 359,247,067,254,065,472/690,355,355.60
  6. Step 6: Final answer
    x = 520,379,923.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.