Home / 53,309,641.51-79,964,462.13-12,920,125.51

Finding the Fourth Proportional to 53,309,641.51, 79,964,462.13 and 12,920,125.51

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Solution

The fourth proportional to 53,309,641.51, 79,964,462.13 and 12,920,125.51 is: 19,380,188.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,309,641.51 : 79,964,462.13 = 12,920,125.51 : x
  2. Step 2: Convert to fraction form
    53,309,641.51/79,964,462.13 = 12,920,125.51/x
  3. Step 3: Cross multiply
    53,309,641.51x = 79,964,462.13 × 12,920,125.51
  4. Step 4: Simplify right side
    53,309,641.51x = 1,033,150,887,059,241.88
  5. Step 5: Solve for x
    x = 1,033,150,887,059,241.88/53,309,641.51
  6. Step 6: Final answer
    x = 19,380,188.23

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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.