Home / 13,158,258.40-19,737,387.60-6,439,794.40

Finding the Fourth Proportional to 13,158,258.40, 19,737,387.60 and 6,439,794.40

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Solution

The fourth proportional to 13,158,258.40, 19,737,387.60 and 6,439,794.40 is: 9,659,691.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,158,258.40 : 19,737,387.60 = 6,439,794.40 : x
  2. Step 2: Convert to fraction form
    13,158,258.40/19,737,387.60 = 6,439,794.40/x
  3. Step 3: Cross multiply
    13,158,258.40x = 19,737,387.60 × 6,439,794.40
  4. Step 4: Simplify right side
    13,158,258.40x = 127,104,718,137,109.45
  5. Step 5: Solve for x
    x = 127,104,718,137,109.45/13,158,258.40
  6. Step 6: Final answer
    x = 9,659,691.60

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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.