Home / 238,862,153,504.57-329,629,759,229.91-128,996,488,988.59

Finding the Fourth Proportional to 238,862,153,504.57, 329,629,759,229.91 and 128,996,488,988.59

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Solution

The fourth proportional to 238,862,153,504.57, 329,629,759,229.91 and 128,996,488,988.59 is: 178,015,147,996.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,862,153,504.57 : 329,629,759,229.91 = 128,996,488,988.59 : x
  2. Step 2: Convert to fraction form
    238,862,153,504.57/329,629,759,229.91 = 128,996,488,988.59/x
  3. Step 3: Cross multiply
    238,862,153,504.57x = 329,629,759,229.91 × 128,996,488,988.59
  4. Step 4: Simplify right side
    238,862,153,504.57x = 42,521,081,606,812,649,652,224
  5. Step 5: Solve for x
    x = 42,521,081,606,812,649,652,224/238,862,153,504.57
  6. Step 6: Final answer
    x = 178,015,147,996.22

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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.