Home / 420,250,717.79-630,758,607.99-223,679,161.65

Finding the Fourth Proportional to 420,250,717.79, 630,758,607.99 and 223,679,161.65

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Solution

The fourth proportional to 420,250,717.79, 630,758,607.99 and 223,679,161.65 is: 335,722,345.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,250,717.79 : 630,758,607.99 = 223,679,161.65 : x
  2. Step 2: Convert to fraction form
    420,250,717.79/630,758,607.99 = 223,679,161.65/x
  3. Step 3: Cross multiply
    420,250,717.79x = 630,758,607.99 × 223,679,161.65
  4. Step 4: Simplify right side
    420,250,717.79x = 141,087,556,638,724,192
  5. Step 5: Solve for x
    x = 141,087,556,638,724,192/420,250,717.79
  6. Step 6: Final answer
    x = 335,722,345.41

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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.