Home / 428,400,107,443.10-641,894,082,599.55-248,821,993,830.60

Finding the Fourth Proportional to 428,400,107,443.10, 641,894,082,599.55 and 248,821,993,830.60

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Solution

The fourth proportional to 428,400,107,443.10, 641,894,082,599.55 and 248,821,993,830.60 is: 372,822,888,429.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,400,107,443.10 : 641,894,082,599.55 = 248,821,993,830.60 : x
  2. Step 2: Convert to fraction form
    428,400,107,443.10/641,894,082,599.55 = 248,821,993,830.60/x
  3. Step 3: Cross multiply
    428,400,107,443.10x = 641,894,082,599.55 × 248,821,993,830.60
  4. Step 4: Simplify right side
    428,400,107,443.10x = 159,717,365,460,483,887,333,376
  5. Step 5: Solve for x
    x = 159,717,365,460,483,887,333,376/428,400,107,443.10
  6. Step 6: Final answer
    x = 372,822,888,429.59

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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.