Home / 28,449,210.88-42,630,710.28-18,830,128.78

Finding the Fourth Proportional to 28,449,210.88, 42,630,710.28 and 18,830,128.78

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Solution

The fourth proportional to 28,449,210.88, 42,630,710.28 and 18,830,128.78 is: 28,216,661.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,449,210.88 : 42,630,710.28 = 18,830,128.78 : x
  2. Step 2: Convert to fraction form
    28,449,210.88/42,630,710.28 = 18,830,128.78/x
  3. Step 3: Cross multiply
    28,449,210.88x = 42,630,710.28 × 18,830,128.78
  4. Step 4: Simplify right side
    28,449,210.88x = 802,741,764,555,269.88
  5. Step 5: Solve for x
    x = 802,741,764,555,269.88/28,449,210.88
  6. Step 6: Final answer
    x = 28,216,661.89

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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.