Home / 12,618,793.60-18,903,307.20-7,555,062.40

Finding the Fourth Proportional to 12,618,793.60, 18,903,307.20 and 7,555,062.40

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Solution

The fourth proportional to 12,618,793.60, 18,903,307.20 and 7,555,062.40 is: 11,317,695.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618,793.60 : 18,903,307.20 = 7,555,062.40 : x
  2. Step 2: Convert to fraction form
    12,618,793.60/18,903,307.20 = 7,555,062.40/x
  3. Step 3: Cross multiply
    12,618,793.60x = 18,903,307.20 × 7,555,062.40
  4. Step 4: Simplify right side
    12,618,793.60x = 142,815,665,462,369.28
  5. Step 5: Solve for x
    x = 142,815,665,462,369.28/12,618,793.60
  6. Step 6: Final answer
    x = 11,317,695.65

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1.5x scale

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.