Home / 21,048,052,115.28-31,561,746,946.92-10,411,987,578.96

Finding the Fourth Proportional to 21,048,052,115.28, 31,561,746,946.92 and 10,411,987,578.96

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Solution

The fourth proportional to 21,048,052,115.28, 31,561,746,946.92 and 10,411,987,578.96 is: 15,612,870,748.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048,052,115.28 : 31,561,746,946.92 = 10,411,987,578.96 : x
  2. Step 2: Convert to fraction form
    21,048,052,115.28/31,561,746,946.92 = 10,411,987,578.96/x
  3. Step 3: Cross multiply
    21,048,052,115.28x = 31,561,746,946.92 × 10,411,987,578.96
  4. Step 4: Simplify right side
    21,048,052,115.28x = 328,620,517,181,609,672,704
  5. Step 5: Solve for x
    x = 328,620,517,181,609,672,704/21,048,052,115.28
  6. Step 6: Final answer
    x = 15,612,870,748.41

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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.