Home / 12,481,403.80-18,684,780.90-7,430,114.20

Finding the Fourth Proportional to 12,481,403.80, 18,684,780.90 and 7,430,114.20

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Solution

The fourth proportional to 12,481,403.80, 18,684,780.90 and 7,430,114.20 is: 11,122,952.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,403.80 : 18,684,780.90 = 7,430,114.20 : x
  2. Step 2: Convert to fraction form
    12,481,403.80/18,684,780.90 = 7,430,114.20/x
  3. Step 3: Cross multiply
    12,481,403.80x = 18,684,780.90 × 7,430,114.20
  4. Step 4: Simplify right side
    12,481,403.80x = 138,830,055,888,978.77
  5. Step 5: Solve for x
    x = 138,830,055,888,978.77/12,481,403.80
  6. Step 6: Final answer
    x = 11,122,952.04

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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.