Home / 420,020,567.10-630,597,721.05-333,856,266.30

Finding the Fourth Proportional to 420,020,567.10, 630,597,721.05 and 333,856,266.30

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Solution

The fourth proportional to 420,020,567.10, 630,597,721.05 and 333,856,266.30 is: 501,234,980.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,020,567.10 : 630,597,721.05 = 333,856,266.30 : x
  2. Step 2: Convert to fraction form
    420,020,567.10/630,597,721.05 = 333,856,266.30/x
  3. Step 3: Cross multiply
    420,020,567.10x = 630,597,721.05 × 333,856,266.30
  4. Step 4: Simplify right side
    420,020,567.10x = 210,529,000,687,041,920
  5. Step 5: Solve for x
    x = 210,529,000,687,041,920/420,020,567.10
  6. Step 6: Final answer
    x = 501,234,980.33

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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.