Home / 12,781,058.40-19,171,684.80-4,261,381.20

Finding the Fourth Proportional to 12,781,058.40, 19,171,684.80 and 4,261,381.20

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Solution

The fourth proportional to 12,781,058.40, 19,171,684.80 and 4,261,381.20 is: 6,392,104.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,058.40 : 19,171,684.80 = 4,261,381.20 : x
  2. Step 2: Convert to fraction form
    12,781,058.40/19,171,684.80 = 4,261,381.20/x
  3. Step 3: Cross multiply
    12,781,058.40x = 19,171,684.80 × 4,261,381.20
  4. Step 4: Simplify right side
    12,781,058.40x = 81,697,857,179,045.77
  5. Step 5: Solve for x
    x = 81,697,857,179,045.77/12,781,058.40
  6. Step 6: Final answer
    x = 6,392,104.21

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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.