Home / 53,590,415.22-80,390,417.88-20,800,215.36

Finding the Fourth Proportional to 53,590,415.22, 80,390,417.88 and 20,800,215.36

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Solution

The fourth proportional to 53,590,415.22, 80,390,417.88 and 20,800,215.36 is: 31,202,184.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,590,415.22 : 80,390,417.88 = 20,800,215.36 : x
  2. Step 2: Convert to fraction form
    53,590,415.22/80,390,417.88 = 20,800,215.36/x
  3. Step 3: Cross multiply
    53,590,415.22x = 80,390,417.88 × 20,800,215.36
  4. Step 4: Simplify right side
    53,590,415.22x = 1,672,138,004,784,394.50
  5. Step 5: Solve for x
    x = 1,672,138,004,784,394.50/53,590,415.22
  6. Step 6: Final answer
    x = 31,202,184.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.