Home / 12,720,291.84-19,080,243.36-5,141,880

Finding the Fourth Proportional to 12,720,291.84, 19,080,243.36 and 5,141,880

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Solution

The fourth proportional to 12,720,291.84, 19,080,243.36 and 5,141,880 is: 7,712,741.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,720,291.84 : 19,080,243.36 = 5,141,880 : x
  2. Step 2: Convert to fraction form
    12,720,291.84/19,080,243.36 = 5,141,880/x
  3. Step 3: Cross multiply
    12,720,291.84x = 19,080,243.36 × 5,141,880
  4. Step 4: Simplify right side
    12,720,291.84x = 98,108,321,727,916.80
  5. Step 5: Solve for x
    x = 98,108,321,727,916.80/12,720,291.84
  6. Step 6: Final answer
    x = 7,712,741.42

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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.