Home / 21,014,415.80-31,521,623.70-13,834,057.40

Finding the Fourth Proportional to 21,014,415.80, 31,521,623.70 and 13,834,057.40

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Solution

The fourth proportional to 21,014,415.80, 31,521,623.70 and 13,834,057.40 is: 20,751,086.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014,415.80 : 31,521,623.70 = 13,834,057.40 : x
  2. Step 2: Convert to fraction form
    21,014,415.80/31,521,623.70 = 13,834,057.40/x
  3. Step 3: Cross multiply
    21,014,415.80x = 31,521,623.70 × 13,834,057.40
  4. Step 4: Simplify right side
    21,014,415.80x = 436,071,951,607,000.38
  5. Step 5: Solve for x
    x = 436,071,951,607,000.38/21,014,415.80
  6. Step 6: Final answer
    x = 20,751,086.10

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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.