Home / 31,503,842.70-47,255,764.05-28,155,764.40

Finding the Fourth Proportional to 31,503,842.70, 47,255,764.05 and 28,155,764.40

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Solution

The fourth proportional to 31,503,842.70, 47,255,764.05 and 28,155,764.40 is: 42,233,646.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,503,842.70 : 47,255,764.05 = 28,155,764.40 : x
  2. Step 2: Convert to fraction form
    31,503,842.70/47,255,764.05 = 28,155,764.40/x
  3. Step 3: Cross multiply
    31,503,842.70x = 47,255,764.05 × 28,155,764.40
  4. Step 4: Simplify right side
    31,503,842.70x = 1,330,522,159,133,789.75
  5. Step 5: Solve for x
    x = 1,330,522,159,133,789.75/31,503,842.70
  6. Step 6: Final answer
    x = 42,233,646.60

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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.