Home / 168,450,384.60-252,455,428.62-121,920,540.52

Finding the Fourth Proportional to 168,450,384.60, 252,455,428.62 and 121,920,540.52

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Solution

The fourth proportional to 168,450,384.60, 252,455,428.62 and 121,920,540.52 is: 182,721,472.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,450,384.60 : 252,455,428.62 = 121,920,540.52 : x
  2. Step 2: Convert to fraction form
    168,450,384.60/252,455,428.62 = 121,920,540.52/x
  3. Step 3: Cross multiply
    168,450,384.60x = 252,455,428.62 × 121,920,540.52
  4. Step 4: Simplify right side
    168,450,384.60x = 30,779,502,314,558,676
  5. Step 5: Solve for x
    x = 30,779,502,314,558,676/168,450,384.60
  6. Step 6: Final answer
    x = 182,721,472.48

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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.