Home / 21,490,291.98-29,651,802.03-18,019,668.78

Finding the Fourth Proportional to 21,490,291.98, 29,651,802.03 and 18,019,668.78

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Solution

The fourth proportional to 21,490,291.98, 29,651,802.03 and 18,019,668.78 is: 24,863,117.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,490,291.98 : 29,651,802.03 = 18,019,668.78 : x
  2. Step 2: Convert to fraction form
    21,490,291.98/29,651,802.03 = 18,019,668.78/x
  3. Step 3: Cross multiply
    21,490,291.98x = 29,651,802.03 × 18,019,668.78
  4. Step 4: Simplify right side
    21,490,291.98x = 534,315,651,310,731.69
  5. Step 5: Solve for x
    x = 534,315,651,310,731.69/21,490,291.98
  6. Step 6: Final answer
    x = 24,863,117.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.