Finding the Fourth Proportional to 542,999,220.40, 814,498,830.60 and 197,964,103.60
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Solution
The fourth proportional to 542,999,220.40, 814,498,830.60 and 197,964,103.60 is: 296,946,155.40
Step by Step Solution
- Step 1: Write the proportion equation
542,999,220.40 : 814,498,830.60 = 197,964,103.60 : x - Step 2: Convert to fraction form
542,999,220.40/814,498,830.60 = 197,964,103.60/x - Step 3: Cross multiply
542,999,220.40x = 814,498,830.60 × 197,964,103.60 - Step 4: Simplify right side
542,999,220.40x = 161,241,530,882,977,248 - Step 5: Solve for x
x = 161,241,530,882,977,248/542,999,220.40 - Step 6: Final answer
x = 296,946,155.40
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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.