Home / 12,749,956.20-19,128,686.56-4,113,894.63

Finding the Fourth Proportional to 12,749,956.20, 19,128,686.56 and 4,113,894.63

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Solution

The fourth proportional to 12,749,956.20, 19,128,686.56 and 4,113,894.63 is: 6,172,052.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,749,956.20 : 19,128,686.56 = 4,113,894.63 : x
  2. Step 2: Convert to fraction form
    12,749,956.20/19,128,686.56 = 4,113,894.63/x
  3. Step 3: Cross multiply
    12,749,956.20x = 19,128,686.56 × 4,113,894.63
  4. Step 4: Simplify right side
    12,749,956.20x = 78,693,400,995,012.12
  5. Step 5: Solve for x
    x = 78,693,400,995,012.12/12,749,956.20
  6. Step 6: Final answer
    x = 6,172,052.65

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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.