Home / 18,138,904.80-27,237,848.40-13,125,400.80

Finding the Fourth Proportional to 18,138,904.80, 27,237,848.40 and 13,125,400.80

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Solution

The fourth proportional to 18,138,904.80, 27,237,848.40 and 13,125,400.80 is: 19,709,441.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138,904.80 : 27,237,848.40 = 13,125,400.80 : x
  2. Step 2: Convert to fraction form
    18,138,904.80/27,237,848.40 = 13,125,400.80/x
  3. Step 3: Cross multiply
    18,138,904.80x = 27,237,848.40 × 13,125,400.80
  4. Step 4: Simplify right side
    18,138,904.80x = 357,507,677,179,638.75
  5. Step 5: Solve for x
    x = 357,507,677,179,638.75/18,138,904.80
  6. Step 6: Final answer
    x = 19,709,441.18

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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.