Home / 21,057,666.36-31,587,142.98-7,224,431.07

Finding the Fourth Proportional to 21,057,666.36, 31,587,142.98 and 7,224,431.07

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Solution

The fourth proportional to 21,057,666.36, 31,587,142.98 and 7,224,431.07 is: 10,836,867.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,057,666.36 : 31,587,142.98 = 7,224,431.07 : x
  2. Step 2: Convert to fraction form
    21,057,666.36/31,587,142.98 = 7,224,431.07/x
  3. Step 3: Cross multiply
    21,057,666.36x = 31,587,142.98 × 7,224,431.07
  4. Step 4: Simplify right side
    21,057,666.36x = 228,199,137,157,244.41
  5. Step 5: Solve for x
    x = 228,199,137,157,244.41/21,057,666.36
  6. Step 6: Final answer
    x = 10,836,867.36

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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.