Home / 65,379,987.36-90,224,378.28-37,893,858.96

Finding the Fourth Proportional to 65,379,987.36, 90,224,378.28 and 37,893,858.96

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Solution

The fourth proportional to 65,379,987.36, 90,224,378.28 and 37,893,858.96 is: 52,293,522.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,379,987.36 : 90,224,378.28 = 37,893,858.96 : x
  2. Step 2: Convert to fraction form
    65,379,987.36/90,224,378.28 = 37,893,858.96/x
  3. Step 3: Cross multiply
    65,379,987.36x = 90,224,378.28 × 37,893,858.96
  4. Step 4: Simplify right side
    65,379,987.36x = 3,418,949,865,296,007.50
  5. Step 5: Solve for x
    x = 3,418,949,865,296,007.50/65,379,987.36
  6. Step 6: Final answer
    x = 52,293,522.89

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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.