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Finding the Fourth Proportional to 121,069,152,078.45, 181,603,728,117.67 and 121,069,152,078.45

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Solution

The fourth proportional to 121,069,152,078.45, 181,603,728,117.67 and 121,069,152,078.45 is: 181,603,728,117.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,069,152,078.45 : 181,603,728,117.67 = 121,069,152,078.45 : x
  2. Step 2: Convert to fraction form
    121,069,152,078.45/181,603,728,117.67 = 121,069,152,078.45/x
  3. Step 3: Cross multiply
    121,069,152,078.45x = 181,603,728,117.67 × 121,069,152,078.45
  4. Step 4: Simplify right side
    121,069,152,078.45x = 21,986,609,377,491,676,037,120
  5. Step 5: Solve for x
    x = 21,986,609,377,491,676,037,120/121,069,152,078.45
  6. Step 6: Final answer
    x = 181,603,728,117.67

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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.