Home / 13,122,021.40-19,683,032.10-12,165,427.60

Finding the Fourth Proportional to 13,122,021.40, 19,683,032.10 and 12,165,427.60

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Solution

The fourth proportional to 13,122,021.40, 19,683,032.10 and 12,165,427.60 is: 18,248,141.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122,021.40 : 19,683,032.10 = 12,165,427.60 : x
  2. Step 2: Convert to fraction form
    13,122,021.40/19,683,032.10 = 12,165,427.60/x
  3. Step 3: Cross multiply
    13,122,021.40x = 19,683,032.10 × 12,165,427.60
  4. Step 4: Simplify right side
    13,122,021.40x = 239,452,501,961,025.97
  5. Step 5: Solve for x
    x = 239,452,501,961,025.97/13,122,021.40
  6. Step 6: Final answer
    x = 18,248,141.40

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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.