Home / 18,649,890.36-25,736,458.05-10,389,941.28

Finding the Fourth Proportional to 18,649,890.36, 25,736,458.05 and 10,389,941.28

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Solution

The fourth proportional to 18,649,890.36, 25,736,458.05 and 10,389,941.28 is: 14,337,901.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,649,890.36 : 25,736,458.05 = 10,389,941.28 : x
  2. Step 2: Convert to fraction form
    18,649,890.36/25,736,458.05 = 10,389,941.28/x
  3. Step 3: Cross multiply
    18,649,890.36x = 25,736,458.05 × 10,389,941.28
  4. Step 4: Simplify right side
    18,649,890.36x = 267,400,287,894,683.28
  5. Step 5: Solve for x
    x = 267,400,287,894,683.28/18,649,890.36
  6. Step 6: Final answer
    x = 14,337,901.34

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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.