Home / 103,206,521.31-142,425,022.67-56,796,775.23

Finding the Fourth Proportional to 103,206,521.31, 142,425,022.67 and 56,796,775.23

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Solution

The fourth proportional to 103,206,521.31, 142,425,022.67 and 56,796,775.23 is: 78,379,562.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,206,521.31 : 142,425,022.67 = 56,796,775.23 : x
  2. Step 2: Convert to fraction form
    103,206,521.31/142,425,022.67 = 56,796,775.23/x
  3. Step 3: Cross multiply
    103,206,521.31x = 142,425,022.67 × 56,796,775.23
  4. Step 4: Simplify right side
    103,206,521.31x = 8,089,281,999,431,660
  5. Step 5: Solve for x
    x = 8,089,281,999,431,660/103,206,521.31
  6. Step 6: Final answer
    x = 78,379,562.62

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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.