Home / 278,541,740.85-384,391,085.54-153,107,631.60

Finding the Fourth Proportional to 278,541,740.85, 384,391,085.54 and 153,107,631.60

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Solution

The fourth proportional to 278,541,740.85, 384,391,085.54 and 153,107,631.60 is: 211,290,446.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,541,740.85 : 384,391,085.54 = 153,107,631.60 : x
  2. Step 2: Convert to fraction form
    278,541,740.85/384,391,085.54 = 153,107,631.60/x
  3. Step 3: Cross multiply
    278,541,740.85x = 384,391,085.54 × 153,107,631.60
  4. Step 4: Simplify right side
    278,541,740.85x = 58,853,208,714,416,872
  5. Step 5: Solve for x
    x = 58,853,208,714,416,872/278,541,740.85
  6. Step 6: Final answer
    x = 211,290,446.22

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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.