Home / 12,879,656.80-19,319,485.20-3,903,042.40

Finding the Fourth Proportional to 12,879,656.80, 19,319,485.20 and 3,903,042.40

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Solution

The fourth proportional to 12,879,656.80, 19,319,485.20 and 3,903,042.40 is: 5,854,563.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,879,656.80 : 19,319,485.20 = 3,903,042.40 : x
  2. Step 2: Convert to fraction form
    12,879,656.80/19,319,485.20 = 3,903,042.40/x
  3. Step 3: Cross multiply
    12,879,656.80x = 19,319,485.20 × 3,903,042.40
  4. Step 4: Simplify right side
    12,879,656.80x = 75,404,769,881,772.47
  5. Step 5: Solve for x
    x = 75,404,769,881,772.47/12,879,656.80
  6. Step 6: Final answer
    x = 5,854,563.60

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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.