Home / 420,061,373.59-630,086,991.94-109,141,477.56

Finding the Fourth Proportional to 420,061,373.59, 630,086,991.94 and 109,141,477.56

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Solution

The fourth proportional to 420,061,373.59, 630,086,991.94 and 109,141,477.56 is: 163,710,899.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,061,373.59 : 630,086,991.94 = 109,141,477.56 : x
  2. Step 2: Convert to fraction form
    420,061,373.59/630,086,991.94 = 109,141,477.56/x
  3. Step 3: Cross multiply
    420,061,373.59x = 630,086,991.94 × 109,141,477.56
  4. Step 4: Simplify right side
    420,061,373.59x = 68,768,625,291,667,416
  5. Step 5: Solve for x
    x = 68,768,625,291,667,416/420,061,373.59
  6. Step 6: Final answer
    x = 163,710,899.44

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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.