Home / 1,954,137,958.40-2,931,206,937.60-661,673,446.40

Finding the Fourth Proportional to 1,954,137,958.40, 2,931,206,937.60 and 661,673,446.40

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Solution

The fourth proportional to 1,954,137,958.40, 2,931,206,937.60 and 661,673,446.40 is: 992,510,169.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954,137,958.40 : 2,931,206,937.60 = 661,673,446.40 : x
  2. Step 2: Convert to fraction form
    1,954,137,958.40/2,931,206,937.60 = 661,673,446.40/x
  3. Step 3: Cross multiply
    1,954,137,958.40x = 2,931,206,937.60 × 661,673,446.40
  4. Step 4: Simplify right side
    1,954,137,958.40x = 1,939,501,796,513,381,632
  5. Step 5: Solve for x
    x = 1,939,501,796,513,381,632/1,954,137,958.40
  6. Step 6: Final answer
    x = 992,510,169.60

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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.