Home / 217,630,998.90-326,021,345.55-131,112,404.10

Finding the Fourth Proportional to 217,630,998.90, 326,021,345.55 and 131,112,404.10

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Solution

The fourth proportional to 217,630,998.90, 326,021,345.55 and 131,112,404.10 is: 196,412,471.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,630,998.90 : 326,021,345.55 = 131,112,404.10 : x
  2. Step 2: Convert to fraction form
    217,630,998.90/326,021,345.55 = 131,112,404.10/x
  3. Step 3: Cross multiply
    217,630,998.90x = 326,021,345.55 × 131,112,404.10
  4. Step 4: Simplify right side
    217,630,998.90x = 42,745,442,402,977,336
  5. Step 5: Solve for x
    x = 42,745,442,402,977,336/217,630,998.90
  6. Step 6: Final answer
    x = 196,412,471.66

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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.