Home / 31,100,379.81-42,927,060.31-18,051,842.45

Finding the Fourth Proportional to 31,100,379.81, 42,927,060.31 and 18,051,842.45

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Solution

The fourth proportional to 31,100,379.81, 42,927,060.31 and 18,051,842.45 is: 24,916,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,100,379.81 : 42,927,060.31 = 18,051,842.45 : x
  2. Step 2: Convert to fraction form
    31,100,379.81/42,927,060.31 = 18,051,842.45/x
  3. Step 3: Cross multiply
    31,100,379.81x = 42,927,060.31 × 18,051,842.45
  4. Step 4: Simplify right side
    31,100,379.81x = 774,912,529,619,956.12
  5. Step 5: Solve for x
    x = 774,912,529,619,956.12/31,100,379.81
  6. Step 6: Final answer
    x = 24,916,497.30

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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.