Home / 12,774,636.40-19,161,954.60-12,018,809.20

Finding the Fourth Proportional to 12,774,636.40, 19,161,954.60 and 12,018,809.20

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Solution

The fourth proportional to 12,774,636.40, 19,161,954.60 and 12,018,809.20 is: 18,028,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,774,636.40 : 19,161,954.60 = 12,018,809.20 : x
  2. Step 2: Convert to fraction form
    12,774,636.40/19,161,954.60 = 12,018,809.20/x
  3. Step 3: Cross multiply
    12,774,636.40x = 19,161,954.60 × 12,018,809.20
  4. Step 4: Simplify right side
    12,774,636.40x = 230,303,876,236,462.31
  5. Step 5: Solve for x
    x = 230,303,876,236,462.31/12,774,636.40
  6. Step 6: Final answer
    x = 18,028,213.80

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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.