Finding the Fourth Proportional to 1,458,440,432.58, 2,187,666,258.52 and 353,043,480.62
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Solution
The fourth proportional to 1,458,440,432.58, 2,187,666,258.52 and 353,043,480.62 is: 529,566,578.85
Step by Step Solution
- Step 1: Write the proportion equation
1,458,440,432.58 : 2,187,666,258.52 = 353,043,480.62 : x - Step 2: Convert to fraction form
1,458,440,432.58/2,187,666,258.52 = 353,043,480.62/x - Step 3: Cross multiply
1,458,440,432.58x = 2,187,666,258.52 × 353,043,480.62 - Step 4: Simplify right side
1,458,440,432.58x = 772,341,310,342,833,536 - Step 5: Solve for x
x = 772,341,310,342,833,536/1,458,440,432.58 - Step 6: Final answer
x = 529,566,578.85
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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.