Home / 12,919,438.26-19,360,876.47-7,164,702.95

Finding the Fourth Proportional to 12,919,438.26, 19,360,876.47 and 7,164,702.95

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Solution

The fourth proportional to 12,919,438.26, 19,360,876.47 and 7,164,702.95 is: 10,736,916.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919,438.26 : 19,360,876.47 = 7,164,702.95 : x
  2. Step 2: Convert to fraction form
    12,919,438.26/19,360,876.47 = 7,164,702.95/x
  3. Step 3: Cross multiply
    12,919,438.26x = 19,360,876.47 × 7,164,702.95
  4. Step 4: Simplify right side
    12,919,438.26x = 138,714,928,662,390.20
  5. Step 5: Solve for x
    x = 138,714,928,662,390.20/12,919,438.26
  6. Step 6: Final answer
    x = 10,736,916.41

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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.