Home / 53,309,640.51-79,964,460.63-12,920,124.51

Finding the Fourth Proportional to 53,309,640.51, 79,964,460.63 and 12,920,124.51

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Solution

The fourth proportional to 53,309,640.51, 79,964,460.63 and 12,920,124.51 is: 19,380,186.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,309,640.51 : 79,964,460.63 = 12,920,124.51 : x
  2. Step 2: Convert to fraction form
    53,309,640.51/79,964,460.63 = 12,920,124.51/x
  3. Step 3: Cross multiply
    53,309,640.51x = 79,964,460.63 × 12,920,124.51
  4. Step 4: Simplify right side
    53,309,640.51x = 1,033,150,787,714,593
  5. Step 5: Solve for x
    x = 1,033,150,787,714,593/53,309,640.51
  6. Step 6: Final answer
    x = 19,380,186.73

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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.