Home / 38,779,889.52-53,516,233.80-21,376,524.36

Finding the Fourth Proportional to 38,779,889.52, 53,516,233.80 and 21,376,524.36

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Solution

The fourth proportional to 38,779,889.52, 53,516,233.80 and 21,376,524.36 is: 29,499,596.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,779,889.52 : 53,516,233.80 = 21,376,524.36 : x
  2. Step 2: Convert to fraction form
    38,779,889.52/53,516,233.80 = 21,376,524.36/x
  3. Step 3: Cross multiply
    38,779,889.52x = 53,516,233.80 × 21,376,524.36
  4. Step 4: Simplify right side
    38,779,889.52x = 1,143,991,075,481,155.25
  5. Step 5: Solve for x
    x = 1,143,991,075,481,155.25/38,779,889.52
  6. Step 6: Final answer
    x = 29,499,596.04

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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.