Finding the Fourth Proportional to 898,429,623.90, 1,348,652,205.45 and 694,860,164.70
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Solution
The fourth proportional to 898,429,623.90, 1,348,652,205.45 and 694,860,164.70 is: 1,043,069,672.54
Step by Step Solution
- Step 1: Write the proportion equation
898,429,623.90 : 1,348,652,205.45 = 694,860,164.70 : x - Step 2: Convert to fraction form
898,429,623.90/1,348,652,205.45 = 694,860,164.70/x - Step 3: Cross multiply
898,429,623.90x = 1,348,652,205.45 × 694,860,164.70 - Step 4: Simplify right side
898,429,623.90x = 937,124,693,602,005,376 - Step 5: Solve for x
x = 937,124,693,602,005,376/898,429,623.90 - Step 6: Final answer
x = 1,043,069,672.54
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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.