Home / 103,429,129,985.51-155,143,694,978.27-103,429,129,985.51

Finding the Fourth Proportional to 103,429,129,985.51, 155,143,694,978.27 and 103,429,129,985.51

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Solution

The fourth proportional to 103,429,129,985.51, 155,143,694,978.27 and 103,429,129,985.51 is: 155,143,694,978.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,429,129,985.51 : 155,143,694,978.27 = 103,429,129,985.51 : x
  2. Step 2: Convert to fraction form
    103,429,129,985.51/155,143,694,978.27 = 103,429,129,985.51/x
  3. Step 3: Cross multiply
    103,429,129,985.51x = 155,143,694,978.27 × 103,429,129,985.51
  4. Step 4: Simplify right side
    103,429,129,985.51x = 16,046,377,394,339,800,154,112
  5. Step 5: Solve for x
    x = 16,046,377,394,339,800,154,112/103,429,129,985.51
  6. Step 6: Final answer
    x = 155,143,694,978.27

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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.