Home / 18,768,019.80-28,152,029.70-5,989,816.20

Finding the Fourth Proportional to 18,768,019.80, 28,152,029.70 and 5,989,816.20

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Solution

The fourth proportional to 18,768,019.80, 28,152,029.70 and 5,989,816.20 is: 8,984,724.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768,019.80 : 28,152,029.70 = 5,989,816.20 : x
  2. Step 2: Convert to fraction form
    18,768,019.80/28,152,029.70 = 5,989,816.20/x
  3. Step 3: Cross multiply
    18,768,019.80x = 28,152,029.70 × 5,989,816.20
  4. Step 4: Simplify right side
    18,768,019.80x = 168,625,483,559,941.16
  5. Step 5: Solve for x
    x = 168,625,483,559,941.16/18,768,019.80
  6. Step 6: Final answer
    x = 8,984,724.30

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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.