Home / 238,862,153,503.30-329,629,759,228.12-128,996,488,987.31

Finding the Fourth Proportional to 238,862,153,503.30, 329,629,759,228.12 and 128,996,488,987.31

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Solution

The fourth proportional to 238,862,153,503.30, 329,629,759,228.12 and 128,996,488,987.31 is: 178,015,147,994.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,862,153,503.30 : 329,629,759,228.12 = 128,996,488,987.31 : x
  2. Step 2: Convert to fraction form
    238,862,153,503.30/329,629,759,228.12 = 128,996,488,987.31/x
  3. Step 3: Cross multiply
    238,862,153,503.30x = 329,629,759,228.12 × 128,996,488,987.31
  4. Step 4: Simplify right side
    238,862,153,503.30x = 42,521,081,606,159,823,011,840
  5. Step 5: Solve for x
    x = 42,521,081,606,159,823,011,840/238,862,153,503.30
  6. Step 6: Final answer
    x = 178,015,147,994.44

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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.