Home / 101,971,445,985.79-140,721,032,949.14-55,622,883,276.31

Finding the Fourth Proportional to 101,971,445,985.79, 140,721,032,949.14 and 55,622,883,276.31

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Solution

The fourth proportional to 101,971,445,985.79, 140,721,032,949.14 and 55,622,883,276.31 is: 76,759,817,560.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,971,445,985.79 : 140,721,032,949.14 = 55,622,883,276.31 : x
  2. Step 2: Convert to fraction form
    101,971,445,985.79/140,721,032,949.14 = 55,622,883,276.31/x
  3. Step 3: Cross multiply
    101,971,445,985.79x = 140,721,032,949.14 × 55,622,883,276.31
  4. Step 4: Simplify right side
    101,971,445,985.79x = 7,827,309,590,251,788,304,384
  5. Step 5: Solve for x
    x = 7,827,309,590,251,788,304,384/101,971,445,985.79
  6. Step 6: Final answer
    x = 76,759,817,560.52

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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.