Home / 38,669,138.48-53,362,347-21,265,483.52

Finding the Fourth Proportional to 38,669,138.48, 53,362,347 and 21,265,483.52

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Solution

The fourth proportional to 38,669,138.48, 53,362,347 and 21,265,483.52 is: 29,345,782.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,669,138.48 : 53,362,347 = 21,265,483.52 : x
  2. Step 2: Convert to fraction form
    38,669,138.48/53,362,347 = 21,265,483.52/x
  3. Step 3: Cross multiply
    38,669,138.48x = 53,362,347 × 21,265,483.52
  4. Step 4: Simplify right side
    38,669,138.48x = 1,134,776,110,717,021.50
  5. Step 5: Solve for x
    x = 1,134,776,110,717,021.50/38,669,138.48
  6. Step 6: Final answer
    x = 29,345,782.07

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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.