Home / 6,477,189.20-9,715,783.80-1,989,465.20

Finding the Fourth Proportional to 6,477,189.20, 9,715,783.80 and 1,989,465.20

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Solution

The fourth proportional to 6,477,189.20, 9,715,783.80 and 1,989,465.20 is: 2,984,197.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,477,189.20 : 9,715,783.80 = 1,989,465.20 : x
  2. Step 2: Convert to fraction form
    6,477,189.20/9,715,783.80 = 1,989,465.20/x
  3. Step 3: Cross multiply
    6,477,189.20x = 9,715,783.80 × 1,989,465.20
  4. Step 4: Simplify right side
    6,477,189.20x = 19,329,213,760,823.76
  5. Step 5: Solve for x
    x = 19,329,213,760,823.76/6,477,189.20
  6. Step 6: Final answer
    x = 2,984,197.80

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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.