Home / 420,274,206.99-630,346,658.75-140,160,042.69

Finding the Fourth Proportional to 420,274,206.99, 630,346,658.75 and 140,160,042.69

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Solution

The fourth proportional to 420,274,206.99, 630,346,658.75 and 140,160,042.69 is: 210,218,502.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,274,206.99 : 630,346,658.75 = 140,160,042.69 : x
  2. Step 2: Convert to fraction form
    420,274,206.99/630,346,658.75 = 140,160,042.69/x
  3. Step 3: Cross multiply
    420,274,206.99x = 630,346,658.75 × 140,160,042.69
  4. Step 4: Simplify right side
    420,274,206.99x = 88,349,414,600,166,832
  5. Step 5: Solve for x
    x = 88,349,414,600,166,832/420,274,206.99
  6. Step 6: Final answer
    x = 210,218,502.90

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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.