Home / 100,885,880,385.68-139,222,526,736.62-55,160,186,771.86

Finding the Fourth Proportional to 100,885,880,385.68, 139,222,526,736.62 and 55,160,186,771.86

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Solution

The fourth proportional to 100,885,880,385.68, 139,222,526,736.62 and 55,160,186,771.86 is: 76,121,064,199.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,885,880,385.68 : 139,222,526,736.62 = 55,160,186,771.86 : x
  2. Step 2: Convert to fraction form
    100,885,880,385.68/139,222,526,736.62 = 55,160,186,771.86/x
  3. Step 3: Cross multiply
    100,885,880,385.68x = 139,222,526,736.62 × 55,160,186,771.86
  4. Step 4: Simplify right side
    100,885,880,385.68x = 7,679,540,577,642,231,103,488
  5. Step 5: Solve for x
    x = 7,679,540,577,642,231,103,488/100,885,880,385.68
  6. Step 6: Final answer
    x = 76,121,064,199.31

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1.5x scale

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.