Home / 15,297,335.28-21,109,913.28-8,421,868.98

Finding the Fourth Proportional to 15,297,335.28, 21,109,913.28 and 8,421,868.98

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Solution

The fourth proportional to 15,297,335.28, 21,109,913.28 and 8,421,868.98 is: 11,621,953.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,297,335.28 : 21,109,913.28 = 8,421,868.98 : x
  2. Step 2: Convert to fraction form
    15,297,335.28/21,109,913.28 = 8,421,868.98/x
  3. Step 3: Cross multiply
    15,297,335.28x = 21,109,913.28 × 8,421,868.98
  4. Step 4: Simplify right side
    15,297,335.28x = 177,784,923,823,322.06
  5. Step 5: Solve for x
    x = 177,784,923,823,322.06/15,297,335.28
  6. Step 6: Final answer
    x = 11,621,953.80

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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.