Home / 12,784,164.60-19,188,056.70-6,398,999.40

Finding the Fourth Proportional to 12,784,164.60, 19,188,056.70 and 6,398,999.40

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Solution

The fourth proportional to 12,784,164.60, 19,188,056.70 and 6,398,999.40 is: 9,604,410.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,784,164.60 : 19,188,056.70 = 6,398,999.40 : x
  2. Step 2: Convert to fraction form
    12,784,164.60/19,188,056.70 = 6,398,999.40/x
  3. Step 3: Cross multiply
    12,784,164.60x = 19,188,056.70 × 6,398,999.40
  4. Step 4: Simplify right side
    12,784,164.60x = 122,784,363,310,465.98
  5. Step 5: Solve for x
    x = 122,784,363,310,465.98/12,784,164.60
  6. Step 6: Final answer
    x = 9,604,410.39

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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.