Home / 13,831,930-20,748,891.46-5,312,266.48

Finding the Fourth Proportional to 13,831,930, 20,748,891.46 and 5,312,266.48

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Solution

The fourth proportional to 13,831,930, 20,748,891.46 and 5,312,266.48 is: 7,968,782.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831,930 : 20,748,891.46 = 5,312,266.48 : x
  2. Step 2: Convert to fraction form
    13,831,930/20,748,891.46 = 5,312,266.48/x
  3. Step 3: Cross multiply
    13,831,930x = 20,748,891.46 × 5,312,266.48
  4. Step 4: Simplify right side
    13,831,930x = 110,223,640,600,116.28
  5. Step 5: Solve for x
    x = 110,223,640,600,116.28/13,831,930
  6. Step 6: Final answer
    x = 7,968,782.42

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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.