Home / 21,256,457.54-31,889,745.72-6,879,525.35

Finding the Fourth Proportional to 21,256,457.54, 31,889,745.72 and 6,879,525.35

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Solution

The fourth proportional to 21,256,457.54, 31,889,745.72 and 6,879,525.35 is: 10,320,925.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,256,457.54 : 31,889,745.72 = 6,879,525.35 : x
  2. Step 2: Convert to fraction form
    21,256,457.54/31,889,745.72 = 6,879,525.35/x
  3. Step 3: Cross multiply
    21,256,457.54x = 31,889,745.72 × 6,879,525.35
  4. Step 4: Simplify right side
    21,256,457.54x = 219,386,313,926,345.25
  5. Step 5: Solve for x
    x = 219,386,313,926,345.25/21,256,457.54
  6. Step 6: Final answer
    x = 10,320,925.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.