Home / 53,309,143.20-79,963,714.20-12,919,627.20

Finding the Fourth Proportional to 53,309,143.20, 79,963,714.20 and 12,919,627.20

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Solution

The fourth proportional to 53,309,143.20, 79,963,714.20 and 12,919,627.20 is: 19,379,440.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,309,143.20 : 79,963,714.20 = 12,919,627.20 : x
  2. Step 2: Convert to fraction form
    53,309,143.20/79,963,714.20 = 12,919,627.20/x
  3. Step 3: Cross multiply
    53,309,143.20x = 79,963,714.20 × 12,919,627.20
  4. Step 4: Simplify right side
    53,309,143.20x = 1,033,101,376,991,346.25
  5. Step 5: Solve for x
    x = 1,033,101,376,991,346.25/53,309,143.20
  6. Step 6: Final answer
    x = 19,379,440.65

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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.