Home / 20,161,113.80-30,241,670.70-11,658,057.80

Finding the Fourth Proportional to 20,161,113.80, 30,241,670.70 and 11,658,057.80

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Solution

The fourth proportional to 20,161,113.80, 30,241,670.70 and 11,658,057.80 is: 17,487,086.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161,113.80 : 30,241,670.70 = 11,658,057.80 : x
  2. Step 2: Convert to fraction form
    20,161,113.80/30,241,670.70 = 11,658,057.80/x
  3. Step 3: Cross multiply
    20,161,113.80x = 30,241,670.70 × 11,658,057.80
  4. Step 4: Simplify right side
    20,161,113.80x = 352,559,144,989,166.50
  5. Step 5: Solve for x
    x = 352,559,144,989,166.50/20,161,113.80
  6. Step 6: Final answer
    x = 17,487,086.70

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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.