Home / 8,721,845.80-13,082,768.70-6,454,364.20

Finding the Fourth Proportional to 8,721,845.80, 13,082,768.70 and 6,454,364.20

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Solution

The fourth proportional to 8,721,845.80, 13,082,768.70 and 6,454,364.20 is: 9,681,546.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721,845.80 : 13,082,768.70 = 6,454,364.20 : x
  2. Step 2: Convert to fraction form
    8,721,845.80/13,082,768.70 = 6,454,364.20/x
  3. Step 3: Cross multiply
    8,721,845.80x = 13,082,768.70 × 6,454,364.20
  4. Step 4: Simplify right side
    8,721,845.80x = 84,440,953,934,160.53
  5. Step 5: Solve for x
    x = 84,440,953,934,160.53/8,721,845.80
  6. Step 6: Final answer
    x = 9,681,546.30

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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.