Home / 28,607,392.26-39,477,904.47-21,297,913.38

Finding the Fourth Proportional to 28,607,392.26, 39,477,904.47 and 21,297,913.38

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Solution

The fourth proportional to 28,607,392.26, 39,477,904.47 and 21,297,913.38 is: 29,390,899.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,607,392.26 : 39,477,904.47 = 21,297,913.38 : x
  2. Step 2: Convert to fraction form
    28,607,392.26/39,477,904.47 = 21,297,913.38/x
  3. Step 3: Cross multiply
    28,607,392.26x = 39,477,904.47 × 21,297,913.38
  4. Step 4: Simplify right side
    28,607,392.26x = 840,796,989,825,974.75
  5. Step 5: Solve for x
    x = 840,796,989,825,974.75/28,607,392.26
  6. Step 6: Final answer
    x = 29,390,899.46

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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.