Home / 21,315,780,395.84-29,414,611,574.10-11,668,644,115.94

Finding the Fourth Proportional to 21,315,780,395.84, 29,414,611,574.10 and 11,668,644,115.94

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Solution

The fourth proportional to 21,315,780,395.84, 29,414,611,574.10 and 11,668,644,115.94 is: 16,102,090,934.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315,780,395.84 : 29,414,611,574.10 = 11,668,644,115.94 : x
  2. Step 2: Convert to fraction form
    21,315,780,395.84/29,414,611,574.10 = 11,668,644,115.94/x
  3. Step 3: Cross multiply
    21,315,780,395.84x = 29,414,611,574.10 × 11,668,644,115.94
  4. Step 4: Simplify right side
    21,315,780,395.84x = 343,228,634,266,635,468,800
  5. Step 5: Solve for x
    x = 343,228,634,266,635,468,800/21,315,780,395.84
  6. Step 6: Final answer
    x = 16,102,090,934.17

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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.