Home / 666,339,641.82-998,916,739.85-316,369,800.09

Finding the Fourth Proportional to 666,339,641.82, 998,916,739.85 and 316,369,800.09

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Solution

The fourth proportional to 666,339,641.82, 998,916,739.85 and 316,369,800.09 is: 474,273,282.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,339,641.82 : 998,916,739.85 = 316,369,800.09 : x
  2. Step 2: Convert to fraction form
    666,339,641.82/998,916,739.85 = 316,369,800.09/x
  3. Step 3: Cross multiply
    666,339,641.82x = 998,916,739.85 × 316,369,800.09
  4. Step 4: Simplify right side
    666,339,641.82x = 316,027,089,291,317,184
  5. Step 5: Solve for x
    x = 316,027,089,291,317,184/666,339,641.82
  6. Step 6: Final answer
    x = 474,273,282.66

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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.