Home / 90,788,397.78-125,141,630.09-61,409,016.17

Finding the Fourth Proportional to 90,788,397.78, 125,141,630.09 and 61,409,016.17

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Solution

The fourth proportional to 90,788,397.78, 125,141,630.09 and 61,409,016.17 is: 84,645,445.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,788,397.78 : 125,141,630.09 = 61,409,016.17 : x
  2. Step 2: Convert to fraction form
    90,788,397.78/125,141,630.09 = 61,409,016.17/x
  3. Step 3: Cross multiply
    90,788,397.78x = 125,141,630.09 × 61,409,016.17
  4. Step 4: Simplify right side
    90,788,397.78x = 7,684,824,384,804,215
  5. Step 5: Solve for x
    x = 7,684,824,384,804,215/90,788,397.78
  6. Step 6: Final answer
    x = 84,645,445.59

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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.