Finding the Fourth Proportional to 1,102,892,603.60, 1,654,338,905.40 and 489,538,830.80
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Solution
The fourth proportional to 1,102,892,603.60, 1,654,338,905.40 and 489,538,830.80 is: 734,308,246.20
Step by Step Solution
- Step 1: Write the proportion equation
1,102,892,603.60 : 1,654,338,905.40 = 489,538,830.80 : x - Step 2: Convert to fraction form
1,102,892,603.60/1,654,338,905.40 = 489,538,830.80/x - Step 3: Cross multiply
1,102,892,603.60x = 1,654,338,905.40 × 489,538,830.80 - Step 4: Simplify right side
1,102,892,603.60x = 809,863,133,496,467,840 - Step 5: Solve for x
x = 809,863,133,496,467,840/1,102,892,603.60 - Step 6: Final answer
x = 734,308,246.20
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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.