Home / 12,983,859.20-19,475,788.80-5,409,840.80

Finding the Fourth Proportional to 12,983,859.20, 19,475,788.80 and 5,409,840.80

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Solution

The fourth proportional to 12,983,859.20, 19,475,788.80 and 5,409,840.80 is: 8,114,761.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,983,859.20 : 19,475,788.80 = 5,409,840.80 : x
  2. Step 2: Convert to fraction form
    12,983,859.20/19,475,788.80 = 5,409,840.80/x
  3. Step 3: Cross multiply
    12,983,859.20x = 19,475,788.80 × 5,409,840.80
  4. Step 4: Simplify right side
    12,983,859.20x = 105,360,916,862,423.05
  5. Step 5: Solve for x
    x = 105,360,916,862,423.05/12,983,859.20
  6. Step 6: Final answer
    x = 8,114,761.20

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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.