Home / 77,841,144,861.87-116,749,919,772.12-21,185,422,818.42

Finding the Fourth Proportional to 77,841,144,861.87, 116,749,919,772.12 and 21,185,422,818.42

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Solution

The fourth proportional to 77,841,144,861.87, 116,749,919,772.12 and 21,185,422,818.42 is: 31,774,923,387.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,841,144,861.87 : 116,749,919,772.12 = 21,185,422,818.42 : x
  2. Step 2: Convert to fraction form
    77,841,144,861.87/116,749,919,772.12 = 21,185,422,818.42/x
  3. Step 3: Cross multiply
    77,841,144,861.87x = 116,749,919,772.12 × 21,185,422,818.42
  4. Step 4: Simplify right side
    77,841,144,861.87x = 2,473,396,414,388,974,911,488
  5. Step 5: Solve for x
    x = 2,473,396,414,388,974,911,488/77,841,144,861.87
  6. Step 6: Final answer
    x = 31,774,923,387.60

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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.