Home / 28,839,002,999.28-39,797,297,389.08-15,978,596,051.76

Finding the Fourth Proportional to 28,839,002,999.28, 39,797,297,389.08 and 15,978,596,051.76

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Solution

The fourth proportional to 28,839,002,999.28, 39,797,297,389.08 and 15,978,596,051.76 is: 22,050,170,699.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,839,002,999.28 : 39,797,297,389.08 = 15,978,596,051.76 : x
  2. Step 2: Convert to fraction form
    28,839,002,999.28/39,797,297,389.08 = 15,978,596,051.76/x
  3. Step 3: Cross multiply
    28,839,002,999.28x = 39,797,297,389.08 × 15,978,596,051.76
  4. Step 4: Simplify right side
    28,839,002,999.28x = 635,904,938,931,872,333,824
  5. Step 5: Solve for x
    x = 635,904,938,931,872,333,824/28,839,002,999.28
  6. Step 6: Final answer
    x = 22,050,170,699.30

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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.