Home / 15,312,813.58-21,133,171.91-11,438,608.69

Finding the Fourth Proportional to 15,312,813.58, 21,133,171.91 and 11,438,608.69

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Solution

The fourth proportional to 15,312,813.58, 21,133,171.91 and 11,438,608.69 is: 15,786,392.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312,813.58 : 21,133,171.91 = 11,438,608.69 : x
  2. Step 2: Convert to fraction form
    15,312,813.58/21,133,171.91 = 11,438,608.69/x
  3. Step 3: Cross multiply
    15,312,813.58x = 21,133,171.91 × 11,438,608.69
  4. Step 4: Simplify right side
    15,312,813.58x = 241,734,083,847,649.28
  5. Step 5: Solve for x
    x = 241,734,083,847,649.28/15,312,813.58
  6. Step 6: Final answer
    x = 15,786,392.39

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1.5x scale

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.