Home / 31,503,847.70-47,255,771.55-28,155,769.40

Finding the Fourth Proportional to 31,503,847.70, 47,255,771.55 and 28,155,769.40

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Solution

The fourth proportional to 31,503,847.70, 47,255,771.55 and 28,155,769.40 is: 42,233,654.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,503,847.70 : 47,255,771.55 = 28,155,769.40 : x
  2. Step 2: Convert to fraction form
    31,503,847.70/47,255,771.55 = 28,155,769.40/x
  3. Step 3: Cross multiply
    31,503,847.70x = 47,255,771.55 × 28,155,769.40
  4. Step 4: Simplify right side
    31,503,847.70x = 1,330,522,606,580,880.50
  5. Step 5: Solve for x
    x = 1,330,522,606,580,880.50/31,503,847.70
  6. Step 6: Final answer
    x = 42,233,654.10

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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.