Home / 21,065,201.20-31,544,657.70-16,813,673.20

Finding the Fourth Proportional to 21,065,201.20, 31,544,657.70 and 16,813,673.20

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Solution

The fourth proportional to 21,065,201.20, 31,544,657.70 and 16,813,673.20 is: 25,178,091.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,065,201.20 : 31,544,657.70 = 16,813,673.20 : x
  2. Step 2: Convert to fraction form
    21,065,201.20/31,544,657.70 = 16,813,673.20/x
  3. Step 3: Cross multiply
    21,065,201.20x = 31,544,657.70 × 16,813,673.20
  4. Step 4: Simplify right side
    21,065,201.20x = 530,381,565,773,663.62
  5. Step 5: Solve for x
    x = 530,381,565,773,663.62/21,065,201.20
  6. Step 6: Final answer
    x = 25,178,091.62

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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.