Home / 420,061,469.40-630,087,135.53-109,141,573.37

Finding the Fourth Proportional to 420,061,469.40, 630,087,135.53 and 109,141,573.37

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Solution

The fourth proportional to 420,061,469.40, 630,087,135.53 and 109,141,573.37 is: 163,711,043.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,061,469.40 : 630,087,135.53 = 109,141,573.37 : x
  2. Step 2: Convert to fraction form
    420,061,469.40/630,087,135.53 = 109,141,573.37/x
  3. Step 3: Cross multiply
    420,061,469.40x = 630,087,135.53 × 109,141,573.37
  4. Step 4: Simplify right side
    420,061,469.40x = 68,768,701,328,244,480
  5. Step 5: Solve for x
    x = 68,768,701,328,244,480/420,061,469.40
  6. Step 6: Final answer
    x = 163,711,043.12

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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.