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Finding the Fourth Proportional to 103,388,369.00, 142,675,950.02 and 56,978,623.44

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Solution

The fourth proportional to 103,388,369.00, 142,675,950.02 and 56,978,623.44 is: 78,630,500.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,388,369.00 : 142,675,950.02 = 56,978,623.44 : x
  2. Step 2: Convert to fraction form
    103,388,369.00/142,675,950.02 = 56,978,623.44/x
  3. Step 3: Cross multiply
    103,388,369.00x = 142,675,950.02 × 56,978,623.44
  4. Step 4: Simplify right side
    103,388,369.00x = 8,129,479,229,848,946
  5. Step 5: Solve for x
    x = 8,129,479,229,848,946/103,388,369.00
  6. Step 6: Final answer
    x = 78,630,500.79

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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.