Home / 20,368,797.35-28,108,378.36-11,201,440.10

Finding the Fourth Proportional to 20,368,797.35, 28,108,378.36 and 11,201,440.10

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Solution

The fourth proportional to 20,368,797.35, 28,108,378.36 and 11,201,440.10 is: 15,457,678.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368,797.35 : 28,108,378.36 = 11,201,440.10 : x
  2. Step 2: Convert to fraction form
    20,368,797.35/28,108,378.36 = 11,201,440.10/x
  3. Step 3: Cross multiply
    20,368,797.35x = 28,108,378.36 × 11,201,440.10
  4. Step 4: Simplify right side
    20,368,797.35x = 314,854,316,507,676.25
  5. Step 5: Solve for x
    x = 314,854,316,507,676.25/20,368,797.35
  6. Step 6: Final answer
    x = 15,457,678.29

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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.