Home / 15,728,427.16-21,703,846.65-8,758,578.44

Finding the Fourth Proportional to 15,728,427.16, 21,703,846.65 and 8,758,578.44

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Solution

The fourth proportional to 15,728,427.16, 21,703,846.65 and 8,758,578.44 is: 12,086,068.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,728,427.16 : 21,703,846.65 = 8,758,578.44 : x
  2. Step 2: Convert to fraction form
    15,728,427.16/21,703,846.65 = 8,758,578.44/x
  3. Step 3: Cross multiply
    15,728,427.16x = 21,703,846.65 × 8,758,578.44
  4. Step 4: Simplify right side
    15,728,427.16x = 190,094,843,333,756.19
  5. Step 5: Solve for x
    x = 190,094,843,333,756.19/15,728,427.16
  6. Step 6: Final answer
    x = 12,086,068.20

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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.