Home / 138,971,538,896.12-208,362,142,497.18-70,770,583,433.24

Finding the Fourth Proportional to 138,971,538,896.12, 208,362,142,497.18 and 70,770,583,433.24

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Solution

The fourth proportional to 138,971,538,896.12, 208,362,142,497.18 and 70,770,583,433.24 is: 106,107,412,402.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,971,538,896.12 : 208,362,142,497.18 = 70,770,583,433.24 : x
  2. Step 2: Convert to fraction form
    138,971,538,896.12/208,362,142,497.18 = 70,770,583,433.24/x
  3. Step 3: Cross multiply
    138,971,538,896.12x = 208,362,142,497.18 × 70,770,583,433.24
  4. Step 4: Simplify right side
    138,971,538,896.12x = 14,745,910,389,925,319,016,448
  5. Step 5: Solve for x
    x = 14,745,910,389,925,319,016,448/138,971,538,896.12
  6. Step 6: Final answer
    x = 106,107,412,402.97

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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.