Home / 12,298,411.20-18,447,616.80-4,320,235.20

Finding the Fourth Proportional to 12,298,411.20, 18,447,616.80 and 4,320,235.20

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Solution

The fourth proportional to 12,298,411.20, 18,447,616.80 and 4,320,235.20 is: 6,480,352.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,298,411.20 : 18,447,616.80 = 4,320,235.20 : x
  2. Step 2: Convert to fraction form
    12,298,411.20/18,447,616.80 = 4,320,235.20/x
  3. Step 3: Cross multiply
    12,298,411.20x = 18,447,616.80 × 4,320,235.20
  4. Step 4: Simplify right side
    12,298,411.20x = 79,698,043,455,471.36
  5. Step 5: Solve for x
    x = 79,698,043,455,471.36/12,298,411.20
  6. Step 6: Final answer
    x = 6,480,352.80

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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.