Home / 158,125,111.29-218,214,881.69-91,107,030.33

Finding the Fourth Proportional to 158,125,111.29, 218,214,881.69 and 91,107,030.33

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Solution

The fourth proportional to 158,125,111.29, 218,214,881.69 and 91,107,030.33 is: 125,728,985.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,125,111.29 : 218,214,881.69 = 91,107,030.33 : x
  2. Step 2: Convert to fraction form
    158,125,111.29/218,214,881.69 = 91,107,030.33/x
  3. Step 3: Cross multiply
    158,125,111.29x = 218,214,881.69 × 91,107,030.33
  4. Step 4: Simplify right side
    158,125,111.29x = 19,880,909,844,132,656
  5. Step 5: Solve for x
    x = 19,880,909,844,132,656/158,125,111.29
  6. Step 6: Final answer
    x = 125,728,985.62

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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.