Home / 7,738,421.40-11,607,632.10-3,912,046.20

Finding the Fourth Proportional to 7,738,421.40, 11,607,632.10 and 3,912,046.20

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Solution

The fourth proportional to 7,738,421.40, 11,607,632.10 and 3,912,046.20 is: 5,868,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738,421.40 : 11,607,632.10 = 3,912,046.20 : x
  2. Step 2: Convert to fraction form
    7,738,421.40/11,607,632.10 = 3,912,046.20/x
  3. Step 3: Cross multiply
    7,738,421.40x = 11,607,632.10 × 3,912,046.20
  4. Step 4: Simplify right side
    7,738,421.40x = 45,409,593,047,803.02
  5. Step 5: Solve for x
    x = 45,409,593,047,803.02/7,738,421.40
  6. Step 6: Final answer
    x = 5,868,069.30

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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.