Home / 15,338,431.92-21,174,706.35-9,539,081.94

Finding the Fourth Proportional to 15,338,431.92, 21,174,706.35 and 9,539,081.94

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Solution

The fourth proportional to 15,338,431.92, 21,174,706.35 and 9,539,081.94 is: 13,168,703.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338,431.92 : 21,174,706.35 = 9,539,081.94 : x
  2. Step 2: Convert to fraction form
    15,338,431.92/21,174,706.35 = 9,539,081.94/x
  3. Step 3: Cross multiply
    15,338,431.92x = 21,174,706.35 × 9,539,081.94
  4. Step 4: Simplify right side
    15,338,431.92x = 201,987,258,928,088.31
  5. Step 5: Solve for x
    x = 201,987,258,928,088.31/15,338,431.92
  6. Step 6: Final answer
    x = 13,168,703.29

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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.