Home / 28,588,821.60-42,879,085.20-8,391,957.60

Finding the Fourth Proportional to 28,588,821.60, 42,879,085.20 and 8,391,957.60

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Solution

The fourth proportional to 28,588,821.60, 42,879,085.20 and 8,391,957.60 is: 12,586,719.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,588,821.60 : 42,879,085.20 = 8,391,957.60 : x
  2. Step 2: Convert to fraction form
    28,588,821.60/42,879,085.20 = 8,391,957.60/x
  3. Step 3: Cross multiply
    28,588,821.60x = 42,879,085.20 × 8,391,957.60
  4. Step 4: Simplify right side
    28,588,821.60x = 359,839,464,925,187.50
  5. Step 5: Solve for x
    x = 359,839,464,925,187.50/28,588,821.60
  6. Step 6: Final answer
    x = 12,586,719.03

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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.