Home / 141,062,403.30-211,593,604.95-85,819,111.35

Finding the Fourth Proportional to 141,062,403.30, 211,593,604.95 and 85,819,111.35

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Solution

The fourth proportional to 141,062,403.30, 211,593,604.95 and 85,819,111.35 is: 128,728,667.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,062,403.30 : 211,593,604.95 = 85,819,111.35 : x
  2. Step 2: Convert to fraction form
    141,062,403.30/211,593,604.95 = 85,819,111.35/x
  3. Step 3: Cross multiply
    141,062,403.30x = 211,593,604.95 × 85,819,111.35
  4. Step 4: Simplify right side
    141,062,403.30x = 18,158,775,144,151,960
  5. Step 5: Solve for x
    x = 18,158,775,144,151,960/141,062,403.30
  6. Step 6: Final answer
    x = 128,728,667.03

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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.