Home / 421,546,876.88-632,231,841.72-118,896,386

Finding the Fourth Proportional to 421,546,876.88, 632,231,841.72 and 118,896,386

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Solution

The fourth proportional to 421,546,876.88, 632,231,841.72 and 118,896,386 is: 178,319,625.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,546,876.88 : 632,231,841.72 = 118,896,386 : x
  2. Step 2: Convert to fraction form
    421,546,876.88/632,231,841.72 = 118,896,386/x
  3. Step 3: Cross multiply
    421,546,876.88x = 632,231,841.72 × 118,896,386
  4. Step 4: Simplify right side
    421,546,876.88x = 75,170,081,094,632,032
  5. Step 5: Solve for x
    x = 75,170,081,094,632,032/421,546,876.88
  6. Step 6: Final answer
    x = 178,319,625.21

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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.