Home / 420,250,700.41-630,758,582.03-223,679,144.36

Finding the Fourth Proportional to 420,250,700.41, 630,758,582.03 and 223,679,144.36

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Solution

The fourth proportional to 420,250,700.41, 630,758,582.03 and 223,679,144.36 is: 335,722,319.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,250,700.41 : 630,758,582.03 = 223,679,144.36 : x
  2. Step 2: Convert to fraction form
    420,250,700.41/630,758,582.03 = 223,679,144.36/x
  3. Step 3: Cross multiply
    420,250,700.41x = 630,758,582.03 × 223,679,144.36
  4. Step 4: Simplify right side
    420,250,700.41x = 141,087,539,923,602,672
  5. Step 5: Solve for x
    x = 141,087,539,923,602,672/420,250,700.41
  6. Step 6: Final answer
    x = 335,722,319.53

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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.