Home / 630,064,613.98-869,489,324.87-347,807,218.78

Finding the Fourth Proportional to 630,064,613.98, 869,489,324.87 and 347,807,218.78

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Solution

The fourth proportional to 630,064,613.98, 869,489,324.87 and 347,807,218.78 is: 479,974,048.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,064,613.98 : 869,489,324.87 = 347,807,218.78 : x
  2. Step 2: Convert to fraction form
    630,064,613.98/869,489,324.87 = 347,807,218.78/x
  3. Step 3: Cross multiply
    630,064,613.98x = 869,489,324.87 × 347,807,218.78
  4. Step 4: Simplify right side
    630,064,613.98x = 302,414,663,835,848,064
  5. Step 5: Solve for x
    x = 302,414,663,835,848,064/630,064,613.98
  6. Step 6: Final answer
    x = 479,974,048.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.