Home / 38,512,622.40-53,147,309.36-21,108,913.76

Finding the Fourth Proportional to 38,512,622.40, 53,147,309.36 and 21,108,913.76

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Solution

The fourth proportional to 38,512,622.40, 53,147,309.36 and 21,108,913.76 is: 29,130,240.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,512,622.40 : 53,147,309.36 = 21,108,913.76 : x
  2. Step 2: Convert to fraction form
    38,512,622.40/53,147,309.36 = 21,108,913.76/x
  3. Step 3: Cross multiply
    38,512,622.40x = 53,147,309.36 × 21,108,913.76
  4. Step 4: Simplify right side
    38,512,622.40x = 1,121,881,969,856,280.88
  5. Step 5: Solve for x
    x = 1,121,881,969,856,280.88/38,512,622.40
  6. Step 6: Final answer
    x = 29,130,240.94

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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.