Home / 81,330,289,618.95-121,995,434,428.42-81,330,289,618.95

Finding the Fourth Proportional to 81,330,289,618.95, 121,995,434,428.42 and 81,330,289,618.95

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Solution

The fourth proportional to 81,330,289,618.95, 121,995,434,428.42 and 81,330,289,618.95 is: 121,995,434,428.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,330,289,618.95 : 121,995,434,428.42 = 81,330,289,618.95 : x
  2. Step 2: Convert to fraction form
    81,330,289,618.95/121,995,434,428.42 = 81,330,289,618.95/x
  3. Step 3: Cross multiply
    81,330,289,618.95x = 121,995,434,428.42 × 81,330,289,618.95
  4. Step 4: Simplify right side
    81,330,289,618.95x = 9,921,924,014,253,021,331,456
  5. Step 5: Solve for x
    x = 9,921,924,014,253,021,331,456/81,330,289,618.95
  6. Step 6: Final answer
    x = 121,995,434,428.42

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Double scale
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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.