Home / 3,996,708,869.03-5,515,239,731.93-2,187,870,816.55

Finding the Fourth Proportional to 3,996,708,869.03, 5,515,239,731.93 and 2,187,870,816.55

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Solution

The fourth proportional to 3,996,708,869.03, 5,515,239,731.93 and 2,187,870,816.55 is: 3,019,142,111.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,996,708,869.03 : 5,515,239,731.93 = 2,187,870,816.55 : x
  2. Step 2: Convert to fraction form
    3,996,708,869.03/5,515,239,731.93 = 2,187,870,816.55/x
  3. Step 3: Cross multiply
    3,996,708,869.03x = 5,515,239,731.93 × 2,187,870,816.55
  4. Step 4: Simplify right side
    3,996,708,869.03x = 12,066,632,055,750,672,384
  5. Step 5: Solve for x
    x = 12,066,632,055,750,672,384/3,996,708,869.03
  6. Step 6: Final answer
    x = 3,019,142,111.97

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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.