Home / 20,368,797.60-28,108,378.71-11,201,440.35

Finding the Fourth Proportional to 20,368,797.60, 28,108,378.71 and 11,201,440.35

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Solution

The fourth proportional to 20,368,797.60, 28,108,378.71 and 11,201,440.35 is: 15,457,678.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368,797.60 : 28,108,378.71 = 11,201,440.35 : x
  2. Step 2: Convert to fraction form
    20,368,797.60/28,108,378.71 = 11,201,440.35/x
  3. Step 3: Cross multiply
    20,368,797.60x = 28,108,378.71 × 11,201,440.35
  4. Step 4: Simplify right side
    20,368,797.60x = 314,854,327,455,274.94
  5. Step 5: Solve for x
    x = 314,854,327,455,274.94/20,368,797.60
  6. Step 6: Final answer
    x = 15,457,678.63

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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.