Home / 100,191,677,887.68-138,264,604,441.60-55,082,172,189.12

Finding the Fourth Proportional to 100,191,677,887.68, 138,264,604,441.60 and 55,082,172,189.12

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Solution

The fourth proportional to 100,191,677,887.68, 138,264,604,441.60 and 55,082,172,189.12 is: 76,013,446,526.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,191,677,887.68 : 138,264,604,441.60 = 55,082,172,189.12 : x
  2. Step 2: Convert to fraction form
    100,191,677,887.68/138,264,604,441.60 = 55,082,172,189.12/x
  3. Step 3: Cross multiply
    100,191,677,887.68x = 138,264,604,441.60 × 55,082,172,189.12
  4. Step 4: Simplify right side
    100,191,677,887.68x = 7,615,914,749,512,777,728,000
  5. Step 5: Solve for x
    x = 7,615,914,749,512,777,728,000/100,191,677,887.68
  6. Step 6: Final answer
    x = 76,013,446,526.47

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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.