Home / 13,278,746.60-19,936,782.30-8,239,898.60

Finding the Fourth Proportional to 13,278,746.60, 19,936,782.30 and 8,239,898.60

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Solution

The fourth proportional to 13,278,746.60, 19,936,782.30 and 8,239,898.60 is: 12,371,428.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278,746.60 : 19,936,782.30 = 8,239,898.60 : x
  2. Step 2: Convert to fraction form
    13,278,746.60/19,936,782.30 = 8,239,898.60/x
  3. Step 3: Cross multiply
    13,278,746.60x = 19,936,782.30 × 8,239,898.60
  4. Step 4: Simplify right side
    13,278,746.60x = 164,277,064,562,274.78
  5. Step 5: Solve for x
    x = 164,277,064,562,274.78/13,278,746.60
  6. Step 6: Final answer
    x = 12,371,428.53

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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.