Home / 158,636,711,932.36-218,917,730,004.68-86,378,603,768.16

Finding the Fourth Proportional to 158,636,711,932.36, 218,917,730,004.68 and 86,378,603,768.16

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Solution

The fourth proportional to 158,636,711,932.36, 218,917,730,004.68 and 86,378,603,768.16 is: 119,201,965,469.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,636,711,932.36 : 218,917,730,004.68 = 86,378,603,768.16 : x
  2. Step 2: Convert to fraction form
    158,636,711,932.36/218,917,730,004.68 = 86,378,603,768.16/x
  3. Step 3: Cross multiply
    158,636,711,932.36x = 218,917,730,004.68 × 86,378,603,768.16
  4. Step 4: Simplify right side
    158,636,711,932.36x = 18,909,807,857,898,627,268,608
  5. Step 5: Solve for x
    x = 18,909,807,857,898,627,268,608/158,636,711,932.36
  6. Step 6: Final answer
    x = 119,201,965,469.14

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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.