Home / 169,169,895,652.39-253,859,217,697.45-78,394,391,968.82

Finding the Fourth Proportional to 169,169,895,652.39, 253,859,217,697.45 and 78,394,391,968.82

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Solution

The fourth proportional to 169,169,895,652.39, 253,859,217,697.45 and 78,394,391,968.82 is: 117,639,955,621.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,169,895,652.39 : 253,859,217,697.45 = 78,394,391,968.82 : x
  2. Step 2: Convert to fraction form
    169,169,895,652.39/253,859,217,697.45 = 78,394,391,968.82/x
  3. Step 3: Cross multiply
    169,169,895,652.39x = 253,859,217,697.45 × 78,394,391,968.82
  4. Step 4: Simplify right side
    169,169,895,652.39x = 19,901,139,017,071,905,996,800
  5. Step 5: Solve for x
    x = 19,901,139,017,071,905,996,800/169,169,895,652.39
  6. Step 6: Final answer
    x = 117,639,955,621.68

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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.