Home / 77,841,144,855.40-116,749,919,762.43-21,185,422,811.94

Finding the Fourth Proportional to 77,841,144,855.40, 116,749,919,762.43 and 21,185,422,811.94

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Solution

The fourth proportional to 77,841,144,855.40, 116,749,919,762.43 and 21,185,422,811.94 is: 31,774,923,377.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,841,144,855.40 : 116,749,919,762.43 = 21,185,422,811.94 : x
  2. Step 2: Convert to fraction form
    77,841,144,855.40/116,749,919,762.43 = 21,185,422,811.94/x
  3. Step 3: Cross multiply
    77,841,144,855.40x = 116,749,919,762.43 × 21,185,422,811.94
  4. Step 4: Simplify right side
    77,841,144,855.40x = 2,473,396,413,427,615,793,152
  5. Step 5: Solve for x
    x = 2,473,396,413,427,615,793,152/77,841,144,855.40
  6. Step 6: Final answer
    x = 31,774,923,377.89

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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.