Home / 21,066,490.28-31,599,735.04-5,920,421.78

Finding the Fourth Proportional to 21,066,490.28, 31,599,735.04 and 5,920,421.78

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Solution

The fourth proportional to 21,066,490.28, 31,599,735.04 and 5,920,421.78 is: 8,880,632.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,066,490.28 : 31,599,735.04 = 5,920,421.78 : x
  2. Step 2: Convert to fraction form
    21,066,490.28/31,599,735.04 = 5,920,421.78/x
  3. Step 3: Cross multiply
    21,066,490.28x = 31,599,735.04 × 5,920,421.78
  4. Step 4: Simplify right side
    21,066,490.28x = 187,083,759,573,045.19
  5. Step 5: Solve for x
    x = 187,083,759,573,045.19/21,066,490.28
  6. Step 6: Final answer
    x = 8,880,632.56

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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.