Home / 120,636,147,956.47-166,485,444,778.47-66,442,685,815.52

Finding the Fourth Proportional to 120,636,147,956.47, 166,485,444,778.47 and 66,442,685,815.52

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Solution

The fourth proportional to 120,636,147,956.47, 166,485,444,778.47 and 66,442,685,815.52 is: 91,695,070,570.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,636,147,956.47 : 166,485,444,778.47 = 66,442,685,815.52 : x
  2. Step 2: Convert to fraction form
    120,636,147,956.47/166,485,444,778.47 = 66,442,685,815.52/x
  3. Step 3: Cross multiply
    120,636,147,956.47x = 166,485,444,778.47 × 66,442,685,815.52
  4. Step 4: Simplify right side
    120,636,147,956.47x = 11,061,740,100,272,154,214,400
  5. Step 5: Solve for x
    x = 11,061,740,100,272,154,214,400/120,636,147,956.47
  6. Step 6: Final answer
    x = 91,695,070,570.92

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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.