Home / 18,590,880.43-25,658,459-15,488,484.31

Finding the Fourth Proportional to 18,590,880.43, 25,658,459 and 15,488,484.31

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Solution

The fourth proportional to 18,590,880.43, 25,658,459 and 15,488,484.31 is: 21,376,644.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,590,880.43 : 25,658,459 = 15,488,484.31 : x
  2. Step 2: Convert to fraction form
    18,590,880.43/25,658,459 = 15,488,484.31/x
  3. Step 3: Cross multiply
    18,590,880.43x = 25,658,459 × 15,488,484.31
  4. Step 4: Simplify right side
    18,590,880.43x = 397,410,639,640,278.31
  5. Step 5: Solve for x
    x = 397,410,639,640,278.31/18,590,880.43
  6. Step 6: Final answer
    x = 21,376,644.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.