Home / 21,069,641.20-31,551,317.70-16,818,113.20

Finding the Fourth Proportional to 21,069,641.20, 31,551,317.70 and 16,818,113.20

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Solution

The fourth proportional to 21,069,641.20, 31,551,317.70 and 16,818,113.20 is: 25,184,749.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069,641.20 : 31,551,317.70 = 16,818,113.20 : x
  2. Step 2: Convert to fraction form
    21,069,641.20/31,551,317.70 = 16,818,113.20/x
  3. Step 3: Cross multiply
    21,069,641.20x = 31,551,317.70 × 16,818,113.20
  4. Step 4: Simplify right side
    21,069,641.20x = 530,633,632,687,763.62
  5. Step 5: Solve for x
    x = 530,633,632,687,763.62/21,069,641.20
  6. Step 6: Final answer
    x = 25,184,749.36

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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.