Home / 3,107,362,813.39-4,288,162,402.68-1,678,433,912.62

Finding the Fourth Proportional to 3,107,362,813.39, 4,288,162,402.68 and 1,678,433,912.62

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Solution

The fourth proportional to 3,107,362,813.39, 4,288,162,402.68 and 1,678,433,912.62 is: 2,316,239,728.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107,362,813.39 : 4,288,162,402.68 = 1,678,433,912.62 : x
  2. Step 2: Convert to fraction form
    3,107,362,813.39/4,288,162,402.68 = 1,678,433,912.62/x
  3. Step 3: Cross multiply
    3,107,362,813.39x = 4,288,162,402.68 × 1,678,433,912.62
  4. Step 4: Simplify right side
    3,107,362,813.39x = 7,197,397,199,463,073,792
  5. Step 5: Solve for x
    x = 7,197,397,199,463,073,792/3,107,362,813.39
  6. Step 6: Final answer
    x = 2,316,239,728.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.