Home / 421,546,875.88-632,231,840.22-118,896,385

Finding the Fourth Proportional to 421,546,875.88, 632,231,840.22 and 118,896,385

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Solution

The fourth proportional to 421,546,875.88, 632,231,840.22 and 118,896,385 is: 178,319,623.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,546,875.88 : 632,231,840.22 = 118,896,385 : x
  2. Step 2: Convert to fraction form
    421,546,875.88/632,231,840.22 = 118,896,385/x
  3. Step 3: Cross multiply
    421,546,875.88x = 632,231,840.22 × 118,896,385
  4. Step 4: Simplify right side
    421,546,875.88x = 75,170,080,284,055,616
  5. Step 5: Solve for x
    x = 75,170,080,284,055,616/421,546,875.88
  6. Step 6: Final answer
    x = 178,319,623.71

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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.