Home / 12,759,272.20-19,140,657.90-4,238,720.20

Finding the Fourth Proportional to 12,759,272.20, 19,140,657.90 and 4,238,720.20

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Solution

The fourth proportional to 12,759,272.20, 19,140,657.90 and 4,238,720.20 is: 6,358,661.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,759,272.20 : 19,140,657.90 = 4,238,720.20 : x
  2. Step 2: Convert to fraction form
    12,759,272.20/19,140,657.90 = 4,238,720.20/x
  3. Step 3: Cross multiply
    12,759,272.20x = 19,140,657.90 × 4,238,720.20
  4. Step 4: Simplify right side
    12,759,272.20x = 81,131,893,282,019.58
  5. Step 5: Solve for x
    x = 81,131,893,282,019.58/12,759,272.20
  6. Step 6: Final answer
    x = 6,358,661.53

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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.