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Finding the Fourth Proportional to 630,064,615.53, 869,489,327.03 and 347,807,220.33

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Solution

The fourth proportional to 630,064,615.53, 869,489,327.03 and 347,807,220.33 is: 479,974,051.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,064,615.53 : 869,489,327.03 = 347,807,220.33 : x
  2. Step 2: Convert to fraction form
    630,064,615.53/869,489,327.03 = 347,807,220.33/x
  3. Step 3: Cross multiply
    630,064,615.53x = 869,489,327.03 × 347,807,220.33
  4. Step 4: Simplify right side
    630,064,615.53x = 302,414,665,939,167,552
  5. Step 5: Solve for x
    x = 302,414,665,939,167,552/630,064,615.53
  6. Step 6: Final answer
    x = 479,974,051.05

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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.