Home / 8,736,005.60-13,104,008.40-7,980,178.40

Finding the Fourth Proportional to 8,736,005.60, 13,104,008.40 and 7,980,178.40

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Solution

The fourth proportional to 8,736,005.60, 13,104,008.40 and 7,980,178.40 is: 11,970,267.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,736,005.60 : 13,104,008.40 = 7,980,178.40 : x
  2. Step 2: Convert to fraction form
    8,736,005.60/13,104,008.40 = 7,980,178.40/x
  3. Step 3: Cross multiply
    8,736,005.60x = 13,104,008.40 × 7,980,178.40
  4. Step 4: Simplify right side
    8,736,005.60x = 104,572,324,787,098.56
  5. Step 5: Solve for x
    x = 104,572,324,787,098.56/8,736,005.60
  6. Step 6: Final answer
    x = 11,970,267.60

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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.