Home / 648,050,440.32-894,090,685.92-421,886,443.31

Finding the Fourth Proportional to 648,050,440.32, 894,090,685.92 and 421,886,443.31

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Solution

The fourth proportional to 648,050,440.32, 894,090,685.92 and 421,886,443.31 is: 582,060,771.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,050,440.32 : 894,090,685.92 = 421,886,443.31 : x
  2. Step 2: Convert to fraction form
    648,050,440.32/894,090,685.92 = 421,886,443.31/x
  3. Step 3: Cross multiply
    648,050,440.32x = 894,090,685.92 × 421,886,443.31
  4. Step 4: Simplify right side
    648,050,440.32x = 377,204,739,476,708,992
  5. Step 5: Solve for x
    x = 377,204,739,476,708,992/648,050,440.32
  6. Step 6: Final answer
    x = 582,060,771.83

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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.