Home / 2,127,472,045.99-3,188,669,166.09-990,178,358.78

Finding the Fourth Proportional to 2,127,472,045.99, 3,188,669,166.09 and 990,178,358.78

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Solution

The fourth proportional to 2,127,472,045.99, 3,188,669,166.09 and 990,178,358.78 is: 1,484,085,869.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127,472,045.99 : 3,188,669,166.09 = 990,178,358.78 : x
  2. Step 2: Convert to fraction form
    2,127,472,045.99/3,188,669,166.09 = 990,178,358.78/x
  3. Step 3: Cross multiply
    2,127,472,045.99x = 3,188,669,166.09 × 990,178,358.78
  4. Step 4: Simplify right side
    2,127,472,045.99x = 3,157,351,201,579,359,232
  5. Step 5: Solve for x
    x = 3,157,351,201,579,359,232/2,127,472,045.99
  6. Step 6: Final answer
    x = 1,484,085,869.68

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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.