Home / 21,234,595.50-31,852,009.89-5,278,243.50

Finding the Fourth Proportional to 21,234,595.50, 31,852,009.89 and 5,278,243.50

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Solution

The fourth proportional to 21,234,595.50, 31,852,009.89 and 5,278,243.50 is: 7,917,394.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,234,595.50 : 31,852,009.89 = 5,278,243.50 : x
  2. Step 2: Convert to fraction form
    21,234,595.50/31,852,009.89 = 5,278,243.50/x
  3. Step 3: Cross multiply
    21,234,595.50x = 31,852,009.89 × 5,278,243.50
  4. Step 4: Simplify right side
    21,234,595.50x = 168,122,664,163,828.22
  5. Step 5: Solve for x
    x = 168,122,664,163,828.22/21,234,595.50
  6. Step 6: Final answer
    x = 7,917,394.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.