Home / 90,288,611.70-124,605,968.64-51,137,353.23

Finding the Fourth Proportional to 90,288,611.70, 124,605,968.64 and 51,137,353.23

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Solution

The fourth proportional to 90,288,611.70, 124,605,968.64 and 51,137,353.23 is: 70,573,899.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,288,611.70 : 124,605,968.64 = 51,137,353.23 : x
  2. Step 2: Convert to fraction form
    90,288,611.70/124,605,968.64 = 51,137,353.23/x
  3. Step 3: Cross multiply
    90,288,611.70x = 124,605,968.64 × 51,137,353.23
  4. Step 4: Simplify right side
    90,288,611.70x = 6,372,019,432,909,982
  5. Step 5: Solve for x
    x = 6,372,019,432,909,982/90,288,611.70
  6. Step 6: Final answer
    x = 70,573,899.77

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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.