Home / 8,870,642.60-13,305,963.90-7,974,847.40

Finding the Fourth Proportional to 8,870,642.60, 13,305,963.90 and 7,974,847.40

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Solution

The fourth proportional to 8,870,642.60, 13,305,963.90 and 7,974,847.40 is: 11,962,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,870,642.60 : 13,305,963.90 = 7,974,847.40 : x
  2. Step 2: Convert to fraction form
    8,870,642.60/13,305,963.90 = 7,974,847.40/x
  3. Step 3: Cross multiply
    8,870,642.60x = 13,305,963.90 × 7,974,847.40
  4. Step 4: Simplify right side
    8,870,642.60x = 106,113,031,612,408.88
  5. Step 5: Solve for x
    x = 106,113,031,612,408.88/8,870,642.60
  6. Step 6: Final answer
    x = 11,962,271.10

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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.