Home / 318,853,367.20-478,280,050.80-210,014,250.40

Finding the Fourth Proportional to 318,853,367.20, 478,280,050.80 and 210,014,250.40

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Solution

The fourth proportional to 318,853,367.20, 478,280,050.80 and 210,014,250.40 is: 315,021,375.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,853,367.20 : 478,280,050.80 = 210,014,250.40 : x
  2. Step 2: Convert to fraction form
    318,853,367.20/478,280,050.80 = 210,014,250.40/x
  3. Step 3: Cross multiply
    318,853,367.20x = 478,280,050.80 × 210,014,250.40
  4. Step 4: Simplify right side
    318,853,367.20x = 100,445,626,350,035,920
  5. Step 5: Solve for x
    x = 100,445,626,350,035,920/318,853,367.20
  6. Step 6: Final answer
    x = 315,021,375.60

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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.