Home / 289,630,814.20-434,446,221.30-173,233,425.40

Finding the Fourth Proportional to 289,630,814.20, 434,446,221.30 and 173,233,425.40

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Solution

The fourth proportional to 289,630,814.20, 434,446,221.30 and 173,233,425.40 is: 259,850,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,630,814.20 : 434,446,221.30 = 173,233,425.40 : x
  2. Step 2: Convert to fraction form
    289,630,814.20/434,446,221.30 = 173,233,425.40/x
  3. Step 3: Cross multiply
    289,630,814.20x = 434,446,221.30 × 173,233,425.40
  4. Step 4: Simplify right side
    289,630,814.20x = 75,260,607,067,885,440
  5. Step 5: Solve for x
    x = 75,260,607,067,885,440/289,630,814.20
  6. Step 6: Final answer
    x = 259,850,138.10

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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.