Home / 20,519,347.80-30,779,021.70-5,374,810.20

Finding the Fourth Proportional to 20,519,347.80, 30,779,021.70 and 5,374,810.20

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Solution

The fourth proportional to 20,519,347.80, 30,779,021.70 and 5,374,810.20 is: 8,062,215.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,519,347.80 : 30,779,021.70 = 5,374,810.20 : x
  2. Step 2: Convert to fraction form
    20,519,347.80/30,779,021.70 = 5,374,810.20/x
  3. Step 3: Cross multiply
    20,519,347.80x = 30,779,021.70 × 5,374,810.20
  4. Step 4: Simplify right side
    20,519,347.80x = 165,431,399,779,181.34
  5. Step 5: Solve for x
    x = 165,431,399,779,181.34/20,519,347.80
  6. Step 6: Final answer
    x = 8,062,215.30

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1.5x scale

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.