Home / 19,245,142.80-28,875,490.20-8,464,496.40

Finding the Fourth Proportional to 19,245,142.80, 28,875,490.20 and 8,464,496.40

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Solution

The fourth proportional to 19,245,142.80, 28,875,490.20 and 8,464,496.40 is: 12,700,164.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,245,142.80 : 28,875,490.20 = 8,464,496.40 : x
  2. Step 2: Convert to fraction form
    19,245,142.80/28,875,490.20 = 8,464,496.40/x
  3. Step 3: Cross multiply
    19,245,142.80x = 28,875,490.20 × 8,464,496.40
  4. Step 4: Simplify right side
    19,245,142.80x = 244,416,482,846,135.28
  5. Step 5: Solve for x
    x = 244,416,482,846,135.28/19,245,142.80
  6. Step 6: Final answer
    x = 12,700,164.68

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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.