Home / 28,656,108.40-42,984,162.60-18,452,441.20

Finding the Fourth Proportional to 28,656,108.40, 42,984,162.60 and 18,452,441.20

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Solution

The fourth proportional to 28,656,108.40, 42,984,162.60 and 18,452,441.20 is: 27,678,661.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656,108.40 : 42,984,162.60 = 18,452,441.20 : x
  2. Step 2: Convert to fraction form
    28,656,108.40/42,984,162.60 = 18,452,441.20/x
  3. Step 3: Cross multiply
    28,656,108.40x = 42,984,162.60 × 18,452,441.20
  4. Step 4: Simplify right side
    28,656,108.40x = 793,162,732,907,739.12
  5. Step 5: Solve for x
    x = 793,162,732,907,739.12/28,656,108.40
  6. Step 6: Final answer
    x = 27,678,661.80

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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.