Home / 15,004,638.26-20,706,131.15-8,478,127.25

Finding the Fourth Proportional to 15,004,638.26, 20,706,131.15 and 8,478,127.25

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Solution

The fourth proportional to 15,004,638.26, 20,706,131.15 and 8,478,127.25 is: 11,699,663.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004,638.26 : 20,706,131.15 = 8,478,127.25 : x
  2. Step 2: Convert to fraction form
    15,004,638.26/20,706,131.15 = 8,478,127.25/x
  3. Step 3: Cross multiply
    15,004,638.26x = 20,706,131.15 × 8,478,127.25
  4. Step 4: Simplify right side
    15,004,638.26x = 175,549,214,598,967.53
  5. Step 5: Solve for x
    x = 175,549,214,598,967.53/15,004,638.26
  6. Step 6: Final answer
    x = 11,699,663.24

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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.