Home / 38,689,091.91-53,390,945.07-21,285,063.77

Finding the Fourth Proportional to 38,689,091.91, 53,390,945.07 and 21,285,063.77

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Solution

The fourth proportional to 38,689,091.91, 53,390,945.07 and 21,285,063.77 is: 29,373,387.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,689,091.91 : 53,390,945.07 = 21,285,063.77 : x
  2. Step 2: Convert to fraction form
    38,689,091.91/53,390,945.07 = 21,285,063.77/x
  3. Step 3: Cross multiply
    38,689,091.91x = 53,390,945.07 × 21,285,063.77
  4. Step 4: Simplify right side
    38,689,091.91x = 1,136,429,670,288,562.50
  5. Step 5: Solve for x
    x = 1,136,429,670,288,562.50/38,689,091.91
  6. Step 6: Final answer
    x = 29,373,387.02

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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.