Home / 138,971,538,887.12-208,362,142,483.68-70,770,583,424.24

Finding the Fourth Proportional to 138,971,538,887.12, 208,362,142,483.68 and 70,770,583,424.24

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Solution

The fourth proportional to 138,971,538,887.12, 208,362,142,483.68 and 70,770,583,424.24 is: 106,107,412,389.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,971,538,887.12 : 208,362,142,483.68 = 70,770,583,424.24 : x
  2. Step 2: Convert to fraction form
    138,971,538,887.12/208,362,142,483.68 = 70,770,583,424.24/x
  3. Step 3: Cross multiply
    138,971,538,887.12x = 208,362,142,483.68 × 70,770,583,424.24
  4. Step 4: Simplify right side
    138,971,538,887.12x = 14,745,910,387,094,656,647,168
  5. Step 5: Solve for x
    x = 14,745,910,387,094,656,647,168/138,971,538,887.12
  6. Step 6: Final answer
    x = 106,107,412,389.47

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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.