Home / 31,421,923.17-43,361,573.15-18,191,657.56

Finding the Fourth Proportional to 31,421,923.17, 43,361,573.15 and 18,191,657.56

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Solution

The fourth proportional to 31,421,923.17, 43,361,573.15 and 18,191,657.56 is: 25,104,093.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,421,923.17 : 43,361,573.15 = 18,191,657.56 : x
  2. Step 2: Convert to fraction form
    31,421,923.17/43,361,573.15 = 18,191,657.56/x
  3. Step 3: Cross multiply
    31,421,923.17x = 43,361,573.15 × 18,191,657.56
  4. Step 4: Simplify right side
    31,421,923.17x = 788,818,889,916,732.25
  5. Step 5: Solve for x
    x = 788,818,889,916,732.25/31,421,923.17
  6. Step 6: Final answer
    x = 25,104,093.27

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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.