Home / 15,698,599.92-21,663,563.13-8,729,243.28

Finding the Fourth Proportional to 15,698,599.92, 21,663,563.13 and 8,729,243.28

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Solution

The fourth proportional to 15,698,599.92, 21,663,563.13 and 8,729,243.28 is: 12,046,075.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,698,599.92 : 21,663,563.13 = 8,729,243.28 : x
  2. Step 2: Convert to fraction form
    15,698,599.92/21,663,563.13 = 8,729,243.28/x
  3. Step 3: Cross multiply
    15,698,599.92x = 21,663,563.13 × 8,729,243.28
  4. Step 4: Simplify right side
    15,698,599.92x = 189,106,512,873,408.25
  5. Step 5: Solve for x
    x = 189,106,512,873,408.25/15,698,599.92
  6. Step 6: Final answer
    x = 12,046,075.05

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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.