Home / 208,459,989,523.45-287,658,998,000.96-116,990,874,688.79

Finding the Fourth Proportional to 208,459,989,523.45, 287,658,998,000.96 and 116,990,874,688.79

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Solution

The fourth proportional to 208,459,989,523.45, 287,658,998,000.96 and 116,990,874,688.79 is: 161,438,546,865.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,459,989,523.45 : 287,658,998,000.96 = 116,990,874,688.79 : x
  2. Step 2: Convert to fraction form
    208,459,989,523.45/287,658,998,000.96 = 116,990,874,688.79/x
  3. Step 3: Cross multiply
    208,459,989,523.45x = 287,658,998,000.96 × 116,990,874,688.79
  4. Step 4: Simplify right side
    208,459,989,523.45x = 33,653,477,788,233,205,022,720
  5. Step 5: Solve for x
    x = 33,653,477,788,233,205,022,720/208,459,989,523.45
  6. Step 6: Final answer
    x = 161,438,546,865.36

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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.