Home / 12,619,421.51-18,937,639.23-4,422,137.48

Finding the Fourth Proportional to 12,619,421.51, 18,937,639.23 and 4,422,137.48

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Solution

The fourth proportional to 12,619,421.51, 18,937,639.23 and 4,422,137.48 is: 6,636,187.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,619,421.51 : 18,937,639.23 = 4,422,137.48 : x
  2. Step 2: Convert to fraction form
    12,619,421.51/18,937,639.23 = 4,422,137.48/x
  3. Step 3: Cross multiply
    12,619,421.51x = 18,937,639.23 × 4,422,137.48
  4. Step 4: Simplify right side
    12,619,421.51x = 83,744,844,127,013.14
  5. Step 5: Solve for x
    x = 83,744,844,127,013.14/12,619,421.51
  6. Step 6: Final answer
    x = 6,636,187.25

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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.