Home / 12,922,746.40-19,383,946.80-3,947,341.60

Finding the Fourth Proportional to 12,922,746.40, 19,383,946.80 and 3,947,341.60

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Solution

The fourth proportional to 12,922,746.40, 19,383,946.80 and 3,947,341.60 is: 5,920,959.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,922,746.40 : 19,383,946.80 = 3,947,341.60 : x
  2. Step 2: Convert to fraction form
    12,922,746.40/19,383,946.80 = 3,947,341.60/x
  3. Step 3: Cross multiply
    12,922,746.40x = 19,383,946.80 × 3,947,341.60
  4. Step 4: Simplify right side
    12,922,746.40x = 76,515,059,575,826.89
  5. Step 5: Solve for x
    x = 76,515,059,575,826.89/12,922,746.40
  6. Step 6: Final answer
    x = 5,920,959.62

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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.