Home / 28,161,779.46-38,856,594.69-15,938,636.46

Finding the Fourth Proportional to 28,161,779.46, 38,856,594.69 and 15,938,636.46

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Solution

The fourth proportional to 28,161,779.46, 38,856,594.69 and 15,938,636.46 is: 21,991,548.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,161,779.46 : 38,856,594.69 = 15,938,636.46 : x
  2. Step 2: Convert to fraction form
    28,161,779.46/38,856,594.69 = 15,938,636.46/x
  3. Step 3: Cross multiply
    28,161,779.46x = 38,856,594.69 × 15,938,636.46
  4. Step 4: Simplify right side
    28,161,779.46x = 619,321,136,837,476.38
  5. Step 5: Solve for x
    x = 619,321,136,837,476.38/28,161,779.46
  6. Step 6: Final answer
    x = 21,991,548.43

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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.