Home / 3,996,708,881.02-5,515,239,748.28-2,187,870,828.57

Finding the Fourth Proportional to 3,996,708,881.02, 5,515,239,748.28 and 2,187,870,828.57

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Solution

The fourth proportional to 3,996,708,881.02, 5,515,239,748.28 and 2,187,870,828.57 is: 3,019,142,128.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,996,708,881.02 : 5,515,239,748.28 = 2,187,870,828.57 : x
  2. Step 2: Convert to fraction form
    3,996,708,881.02/5,515,239,748.28 = 2,187,870,828.57/x
  3. Step 3: Cross multiply
    3,996,708,881.02x = 5,515,239,748.28 × 2,187,870,828.57
  4. Step 4: Simplify right side
    3,996,708,881.02x = 12,066,632,157,820,622,848
  5. Step 5: Solve for x
    x = 12,066,632,157,820,622,848/3,996,708,881.02
  6. Step 6: Final answer
    x = 3,019,142,128.45

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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.