Home / 21,200,370.50-31,737,779.22-13,087,259.30

Finding the Fourth Proportional to 21,200,370.50, 31,737,779.22 and 13,087,259.30

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Solution

The fourth proportional to 21,200,370.50, 31,737,779.22 and 13,087,259.30 is: 19,592,136.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,200,370.50 : 31,737,779.22 = 13,087,259.30 : x
  2. Step 2: Convert to fraction form
    21,200,370.50/31,737,779.22 = 13,087,259.30/x
  3. Step 3: Cross multiply
    21,200,370.50x = 31,737,779.22 × 13,087,259.30
  4. Step 4: Simplify right side
    21,200,370.50x = 415,360,546,258,291.75
  5. Step 5: Solve for x
    x = 415,360,546,258,291.75/21,200,370.50
  6. Step 6: Final answer
    x = 19,592,136.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.