Home / 20,739,793.60-31,109,690.40-8,772,529.60

Finding the Fourth Proportional to 20,739,793.60, 31,109,690.40 and 8,772,529.60

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Solution

The fourth proportional to 20,739,793.60, 31,109,690.40 and 8,772,529.60 is: 13,158,794.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739,793.60 : 31,109,690.40 = 8,772,529.60 : x
  2. Step 2: Convert to fraction form
    20,739,793.60/31,109,690.40 = 8,772,529.60/x
  3. Step 3: Cross multiply
    20,739,793.60x = 31,109,690.40 × 8,772,529.60
  4. Step 4: Simplify right side
    20,739,793.60x = 272,910,679,880,835.81
  5. Step 5: Solve for x
    x = 272,910,679,880,835.81/20,739,793.60
  6. Step 6: Final answer
    x = 13,158,794.40

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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.