Home / 21,152,145.25-29,198,889.21-14,285,927.53

Finding the Fourth Proportional to 21,152,145.25, 29,198,889.21 and 14,285,927.53

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Solution

The fourth proportional to 21,152,145.25, 29,198,889.21 and 14,285,927.53 is: 19,720,610.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,152,145.25 : 29,198,889.21 = 14,285,927.53 : x
  2. Step 2: Convert to fraction form
    21,152,145.25/29,198,889.21 = 14,285,927.53/x
  3. Step 3: Cross multiply
    21,152,145.25x = 29,198,889.21 × 14,285,927.53
  4. Step 4: Simplify right side
    21,152,145.25x = 417,133,215,210,558.94
  5. Step 5: Solve for x
    x = 417,133,215,210,558.94/21,152,145.25
  6. Step 6: Final answer
    x = 19,720,610.38

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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.