Home / 18,783,442.60-28,209,378.30-16,431,980.20

Finding the Fourth Proportional to 18,783,442.60, 28,209,378.30 and 16,431,980.20

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Solution

The fourth proportional to 18,783,442.60, 28,209,378.30 and 16,431,980.20 is: 24,677,901.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783,442.60 : 28,209,378.30 = 16,431,980.20 : x
  2. Step 2: Convert to fraction form
    18,783,442.60/28,209,378.30 = 16,431,980.20/x
  3. Step 3: Cross multiply
    18,783,442.60x = 28,209,378.30 × 16,431,980.20
  4. Step 4: Simplify right side
    18,783,442.60x = 463,535,945,679,909.62
  5. Step 5: Solve for x
    x = 463,535,945,679,909.62/18,783,442.60
  6. Step 6: Final answer
    x = 24,677,901.47

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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.