Home / 20,408,261.85-28,163,395.71-11,240,904.60

Finding the Fourth Proportional to 20,408,261.85, 28,163,395.71 and 11,240,904.60

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Solution

The fourth proportional to 20,408,261.85, 28,163,395.71 and 11,240,904.60 is: 15,512,445.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408,261.85 : 28,163,395.71 = 11,240,904.60 : x
  2. Step 2: Convert to fraction form
    20,408,261.85/28,163,395.71 = 11,240,904.60/x
  3. Step 3: Cross multiply
    20,408,261.85x = 28,163,395.71 × 11,240,904.60
  4. Step 4: Simplify right side
    20,408,261.85x = 316,582,044,388,159.25
  5. Step 5: Solve for x
    x = 316,582,044,388,159.25/20,408,261.85
  6. Step 6: Final answer
    x = 15,512,445.24

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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.