Home / 77,841,144,858.71-116,749,919,767.40-21,185,422,815.26

Finding the Fourth Proportional to 77,841,144,858.71, 116,749,919,767.40 and 21,185,422,815.26

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Solution

The fourth proportional to 77,841,144,858.71, 116,749,919,767.40 and 21,185,422,815.26 is: 31,774,923,382.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,841,144,858.71 : 116,749,919,767.40 = 21,185,422,815.26 : x
  2. Step 2: Convert to fraction form
    77,841,144,858.71/116,749,919,767.40 = 21,185,422,815.26/x
  3. Step 3: Cross multiply
    77,841,144,858.71x = 116,749,919,767.40 × 21,185,422,815.26
  4. Step 4: Simplify right side
    77,841,144,858.71x = 2,473,396,413,919,466,618,880
  5. Step 5: Solve for x
    x = 2,473,396,413,919,466,618,880/77,841,144,858.71
  6. Step 6: Final answer
    x = 31,774,923,382.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.