Home / 21,256,477.55-31,889,775.74-6,879,545.36

Finding the Fourth Proportional to 21,256,477.55, 31,889,775.74 and 6,879,545.36

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Solution

The fourth proportional to 21,256,477.55, 31,889,775.74 and 6,879,545.36 is: 10,320,955.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,256,477.55 : 31,889,775.74 = 6,879,545.36 : x
  2. Step 2: Convert to fraction form
    21,256,477.55/31,889,775.74 = 6,879,545.36/x
  3. Step 3: Cross multiply
    21,256,477.55x = 31,889,775.74 × 6,879,545.36
  4. Step 4: Simplify right side
    21,256,477.55x = 219,387,158,649,297.59
  5. Step 5: Solve for x
    x = 219,387,158,649,297.59/21,256,477.55
  6. Step 6: Final answer
    x = 10,320,955.49

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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.