Home / 25,920,050.80-38,880,076.20-21,133,145.20

Finding the Fourth Proportional to 25,920,050.80, 38,880,076.20 and 21,133,145.20

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Solution

The fourth proportional to 25,920,050.80, 38,880,076.20 and 21,133,145.20 is: 31,699,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,920,050.80 : 38,880,076.20 = 21,133,145.20 : x
  2. Step 2: Convert to fraction form
    25,920,050.80/38,880,076.20 = 21,133,145.20/x
  3. Step 3: Cross multiply
    25,920,050.80x = 38,880,076.20 × 21,133,145.20
  4. Step 4: Simplify right side
    25,920,050.80x = 821,658,295,721,664.25
  5. Step 5: Solve for x
    x = 821,658,295,721,664.25/25,920,050.80
  6. Step 6: Final answer
    x = 31,699,717.80

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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.