Home / 20,211,963.60-30,317,945.40-7,430,807.55

Finding the Fourth Proportional to 20,211,963.60, 30,317,945.40 and 7,430,807.55

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Solution

The fourth proportional to 20,211,963.60, 30,317,945.40 and 7,430,807.55 is: 11,146,211.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211,963.60 : 30,317,945.40 = 7,430,807.55 : x
  2. Step 2: Convert to fraction form
    20,211,963.60/30,317,945.40 = 7,430,807.55/x
  3. Step 3: Cross multiply
    20,211,963.60x = 30,317,945.40 × 7,430,807.55
  4. Step 4: Simplify right side
    20,211,963.60x = 225,286,817,578,807.75
  5. Step 5: Solve for x
    x = 225,286,817,578,807.75/20,211,963.60
  6. Step 6: Final answer
    x = 11,146,211.33

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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.