Home / 12,879,427.80-19,319,141.70-3,902,813.40

Finding the Fourth Proportional to 12,879,427.80, 19,319,141.70 and 3,902,813.40

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Solution

The fourth proportional to 12,879,427.80, 19,319,141.70 and 3,902,813.40 is: 5,854,220.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,879,427.80 : 19,319,141.70 = 3,902,813.40 : x
  2. Step 2: Convert to fraction form
    12,879,427.80/19,319,141.70 = 3,902,813.40/x
  3. Step 3: Cross multiply
    12,879,427.80x = 19,319,141.70 × 3,902,813.40
  4. Step 4: Simplify right side
    12,879,427.80x = 75,399,005,103,258.78
  5. Step 5: Solve for x
    x = 75,399,005,103,258.78/12,879,427.80
  6. Step 6: Final answer
    x = 5,854,220.10

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1.5x scale

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.