Home / 103,783,378.30-143,213,869.22-57,369,978.56

Finding the Fourth Proportional to 103,783,378.30, 143,213,869.22 and 57,369,978.56

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Solution

The fourth proportional to 103,783,378.30, 143,213,869.22 and 57,369,978.56 is: 79,166,594.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,783,378.30 : 143,213,869.22 = 57,369,978.56 : x
  2. Step 2: Convert to fraction form
    103,783,378.30/143,213,869.22 = 57,369,978.56/x
  3. Step 3: Cross multiply
    103,783,378.30x = 143,213,869.22 × 57,369,978.56
  4. Step 4: Simplify right side
    103,783,378.30x = 8,216,176,606,717,229
  5. Step 5: Solve for x
    x = 8,216,176,606,717,229/103,783,378.30
  6. Step 6: Final answer
    x = 79,166,594.32

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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.