Finding the Fourth Proportional to 898,137,657.70, 1,347,206,486.55 and 787,059,052.90
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Solution
The fourth proportional to 898,137,657.70, 1,347,206,486.55 and 787,059,052.90 is: 1,180,588,579.35
Step by Step Solution
- Step 1: Write the proportion equation
898,137,657.70 : 1,347,206,486.55 = 787,059,052.90 : x - Step 2: Convert to fraction form
898,137,657.70/1,347,206,486.55 = 787,059,052.90/x - Step 3: Cross multiply
898,137,657.70x = 1,347,206,486.55 × 787,059,052.90 - Step 4: Simplify right side
898,137,657.70x = 1,060,331,061,364,779,520 - Step 5: Solve for x
x = 1,060,331,061,364,779,520/898,137,657.70 - Step 6: Final answer
x = 1,180,588,579.35
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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.