Home / 2,127,472,065.74-3,188,669,195.64-990,178,378.49

Finding the Fourth Proportional to 2,127,472,065.74, 3,188,669,195.64 and 990,178,378.49

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Solution

The fourth proportional to 2,127,472,065.74, 3,188,669,195.64 and 990,178,378.49 is: 1,484,085,899.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127,472,065.74 : 3,188,669,195.64 = 990,178,378.49 : x
  2. Step 2: Convert to fraction form
    2,127,472,065.74/3,188,669,195.64 = 990,178,378.49/x
  3. Step 3: Cross multiply
    2,127,472,065.74x = 3,188,669,195.64 × 990,178,378.49
  4. Step 4: Simplify right side
    2,127,472,065.74x = 3,157,351,293,679,827,456
  5. Step 5: Solve for x
    x = 3,157,351,293,679,827,456/2,127,472,065.74
  6. Step 6: Final answer
    x = 1,484,085,899.19

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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.