Home / 890,429,770.98-1,335,018,817.26-392,203,833.48

Finding the Fourth Proportional to 890,429,770.98, 1,335,018,817.26 and 392,203,833.48

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Solution

The fourth proportional to 890,429,770.98, 1,335,018,817.26 and 392,203,833.48 is: 588,030,089.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,429,770.98 : 1,335,018,817.26 = 392,203,833.48 : x
  2. Step 2: Convert to fraction form
    890,429,770.98/1,335,018,817.26 = 392,203,833.48/x
  3. Step 3: Cross multiply
    890,429,770.98x = 1,335,018,817.26 × 392,203,833.48
  4. Step 4: Simplify right side
    890,429,770.98x = 523,599,497,897,307,584
  5. Step 5: Solve for x
    x = 523,599,497,897,307,584/890,429,770.98
  6. Step 6: Final answer
    x = 588,030,089.47

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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.