Home / 15,278,145,406.92-21,083,841,675.44-8,503,818,605.87

Finding the Fourth Proportional to 15,278,145,406.92, 21,083,841,675.44 and 8,503,818,605.87

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Solution

The fourth proportional to 15,278,145,406.92, 21,083,841,675.44 and 8,503,818,605.87 is: 11,735,270,240.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,278,145,406.92 : 21,083,841,675.44 = 8,503,818,605.87 : x
  2. Step 2: Convert to fraction form
    15,278,145,406.92/21,083,841,675.44 = 8,503,818,605.87/x
  3. Step 3: Cross multiply
    15,278,145,406.92x = 21,083,841,675.44 × 8,503,818,605.87
  4. Step 4: Simplify right side
    15,278,145,406.92x = 179,293,165,122,676,064,256
  5. Step 5: Solve for x
    x = 179,293,165,122,676,064,256/15,278,145,406.92
  6. Step 6: Final answer
    x = 11,735,270,240.42

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1.5x scale

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.