Home / 90,699,264,546.40-136,048,896,819.60-81,883,296,085.60

Finding the Fourth Proportional to 90,699,264,546.40, 136,048,896,819.60 and 81,883,296,085.60

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Solution

The fourth proportional to 90,699,264,546.40, 136,048,896,819.60 and 81,883,296,085.60 is: 122,824,944,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,699,264,546.40 : 136,048,896,819.60 = 81,883,296,085.60 : x
  2. Step 2: Convert to fraction form
    90,699,264,546.40/136,048,896,819.60 = 81,883,296,085.60/x
  3. Step 3: Cross multiply
    90,699,264,546.40x = 136,048,896,819.60 × 81,883,296,085.60
  4. Step 4: Simplify right side
    90,699,264,546.40x = 11,140,132,100,398,552,973,312
  5. Step 5: Solve for x
    x = 11,140,132,100,398,552,973,312/90,699,264,546.40
  6. Step 6: Final answer
    x = 122,824,944,128.40

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1.5x scale

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.