Home / 7,122,421.20-10,683,631.80-2,073,896.40

Finding the Fourth Proportional to 7,122,421.20, 10,683,631.80 and 2,073,896.40

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Solution

The fourth proportional to 7,122,421.20, 10,683,631.80 and 2,073,896.40 is: 3,110,844.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122,421.20 : 10,683,631.80 = 2,073,896.40 : x
  2. Step 2: Convert to fraction form
    7,122,421.20/10,683,631.80 = 2,073,896.40/x
  3. Step 3: Cross multiply
    7,122,421.20x = 10,683,631.80 × 2,073,896.40
  4. Step 4: Simplify right side
    7,122,421.20x = 22,156,745,528,945.52
  5. Step 5: Solve for x
    x = 22,156,745,528,945.52/7,122,421.20
  6. Step 6: Final answer
    x = 3,110,844.60

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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.