Home / 420,250,701.28-630,758,583.35-223,679,145.23

Finding the Fourth Proportional to 420,250,701.28, 630,758,583.35 and 223,679,145.23

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Solution

The fourth proportional to 420,250,701.28, 630,758,583.35 and 223,679,145.23 is: 335,722,320.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,250,701.28 : 630,758,583.35 = 223,679,145.23 : x
  2. Step 2: Convert to fraction form
    420,250,701.28/630,758,583.35 = 223,679,145.23/x
  3. Step 3: Cross multiply
    420,250,701.28x = 630,758,583.35 × 223,679,145.23
  4. Step 4: Simplify right side
    420,250,701.28x = 141,087,540,770,213,712
  5. Step 5: Solve for x
    x = 141,087,540,770,213,712/420,250,701.28
  6. Step 6: Final answer
    x = 335,722,320.84

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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.