Home / 13,784,112,988.28-19,021,817,563.78-8,431,280,136.12

Finding the Fourth Proportional to 13,784,112,988.28, 19,021,817,563.78 and 8,431,280,136.12

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Solution

The fourth proportional to 13,784,112,988.28, 19,021,817,563.78 and 8,431,280,136.12 is: 11,635,008,557.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784,112,988.28 : 19,021,817,563.78 = 8,431,280,136.12 : x
  2. Step 2: Convert to fraction form
    13,784,112,988.28/19,021,817,563.78 = 8,431,280,136.12/x
  3. Step 3: Cross multiply
    13,784,112,988.28x = 19,021,817,563.78 × 8,431,280,136.12
  4. Step 4: Simplify right side
    13,784,112,988.28x = 160,378,272,578,396,848,128
  5. Step 5: Solve for x
    x = 160,378,272,578,396,848,128/13,784,112,988.28
  6. Step 6: Final answer
    x = 11,635,008,557.66

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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.