Home / 421,398,283.98-630,838,052.95-254,897,906.97

Finding the Fourth Proportional to 421,398,283.98, 630,838,052.95 and 254,897,906.97

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Solution

The fourth proportional to 421,398,283.98, 630,838,052.95 and 254,897,906.97 is: 381,585,083.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,398,283.98 : 630,838,052.95 = 254,897,906.97 : x
  2. Step 2: Convert to fraction form
    421,398,283.98/630,838,052.95 = 254,897,906.97/x
  3. Step 3: Cross multiply
    421,398,283.98x = 630,838,052.95 × 254,897,906.97
  4. Step 4: Simplify right side
    421,398,283.98x = 160,799,299,333,985,056
  5. Step 5: Solve for x
    x = 160,799,299,333,985,056/421,398,283.98
  6. Step 6: Final answer
    x = 381,585,083.39

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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.