Home / 90,699,264,978.40-136,048,897,467.60-87,393,276,805.60

Finding the Fourth Proportional to 90,699,264,978.40, 136,048,897,467.60 and 87,393,276,805.60

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Solution

The fourth proportional to 90,699,264,978.40, 136,048,897,467.60 and 87,393,276,805.60 is: 131,089,915,208.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,699,264,978.40 : 136,048,897,467.60 = 87,393,276,805.60 : x
  2. Step 2: Convert to fraction form
    90,699,264,978.40/136,048,897,467.60 = 87,393,276,805.60/x
  3. Step 3: Cross multiply
    90,699,264,978.40x = 136,048,897,467.60 × 87,393,276,805.60
  4. Step 4: Simplify right side
    90,699,264,978.40x = 11,889,758,955,482,661,257,216
  5. Step 5: Solve for x
    x = 11,889,758,955,482,661,257,216/90,699,264,978.40
  6. Step 6: Final answer
    x = 131,089,915,208.40

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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.