Home / 8,805,679.20-13,208,518.80-8,021,858.40

Finding the Fourth Proportional to 8,805,679.20, 13,208,518.80 and 8,021,858.40

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Solution

The fourth proportional to 8,805,679.20, 13,208,518.80 and 8,021,858.40 is: 12,032,787.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805,679.20 : 13,208,518.80 = 8,021,858.40 : x
  2. Step 2: Convert to fraction form
    8,805,679.20/13,208,518.80 = 8,021,858.40/x
  3. Step 3: Cross multiply
    8,805,679.20x = 13,208,518.80 × 8,021,858.40
  4. Step 4: Simplify right side
    8,805,679.20x = 105,956,867,487,337.94
  5. Step 5: Solve for x
    x = 105,956,867,487,337.94/8,805,679.20
  6. Step 6: Final answer
    x = 12,032,787.60

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Similar ratio
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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.