Home / 13,057,420.40-19,586,130.60-12,161,625.20

Finding the Fourth Proportional to 13,057,420.40, 19,586,130.60 and 12,161,625.20

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Solution

The fourth proportional to 13,057,420.40, 19,586,130.60 and 12,161,625.20 is: 18,242,437.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,057,420.40 : 19,586,130.60 = 12,161,625.20 : x
  2. Step 2: Convert to fraction form
    13,057,420.40/19,586,130.60 = 12,161,625.20/x
  3. Step 3: Cross multiply
    13,057,420.40x = 19,586,130.60 × 12,161,625.20
  4. Step 4: Simplify right side
    13,057,420.40x = 238,199,179,475,451.12
  5. Step 5: Solve for x
    x = 238,199,179,475,451.12/13,057,420.40
  6. Step 6: Final answer
    x = 18,242,437.80

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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.