Home / 927,040,665.60-1,390,560,998.40-912,707,942.40

Finding the Fourth Proportional to 927,040,665.60, 1,390,560,998.40 and 912,707,942.40

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Solution

The fourth proportional to 927,040,665.60, 1,390,560,998.40 and 912,707,942.40 is: 1,369,061,913.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,040,665.60 : 1,390,560,998.40 = 912,707,942.40 : x
  2. Step 2: Convert to fraction form
    927,040,665.60/1,390,560,998.40 = 912,707,942.40/x
  3. Step 3: Cross multiply
    927,040,665.60x = 1,390,560,998.40 × 912,707,942.40
  4. Step 4: Simplify right side
    927,040,665.60x = 1,269,176,067,631,353,856
  5. Step 5: Solve for x
    x = 1,269,176,067,631,353,856/927,040,665.60
  6. Step 6: Final answer
    x = 1,369,061,913.60

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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.