Home / 30,377,139.64-41,920,133.34-16,438,189.60

Finding the Fourth Proportional to 30,377,139.64, 41,920,133.34 and 16,438,189.60

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Solution

The fourth proportional to 30,377,139.64, 41,920,133.34 and 16,438,189.60 is: 22,684,528.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,377,139.64 : 41,920,133.34 = 16,438,189.60 : x
  2. Step 2: Convert to fraction form
    30,377,139.64/41,920,133.34 = 16,438,189.60/x
  3. Step 3: Cross multiply
    30,377,139.64x = 41,920,133.34 × 16,438,189.60
  4. Step 4: Simplify right side
    30,377,139.64x = 689,091,099,900,201.25
  5. Step 5: Solve for x
    x = 689,091,099,900,201.25/30,377,139.64
  6. Step 6: Final answer
    x = 22,684,528.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.