Home / 129,365,786.40-194,048,679.60-52,649,325.60

Finding the Fourth Proportional to 129,365,786.40, 194,048,679.60 and 52,649,325.60

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Solution

The fourth proportional to 129,365,786.40, 194,048,679.60 and 52,649,325.60 is: 78,973,988.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,365,786.40 : 194,048,679.60 = 52,649,325.60 : x
  2. Step 2: Convert to fraction form
    129,365,786.40/194,048,679.60 = 52,649,325.60/x
  3. Step 3: Cross multiply
    129,365,786.40x = 194,048,679.60 × 52,649,325.60
  4. Step 4: Simplify right side
    129,365,786.40x = 10,216,532,114,510,478
  5. Step 5: Solve for x
    x = 10,216,532,114,510,478/129,365,786.40
  6. Step 6: Final answer
    x = 78,973,988.40

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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.