Finding the Fourth Proportional to 848,281,161.60, 1,272,421,742.40 and 787,059,158.40
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Solution
The fourth proportional to 848,281,161.60, 1,272,421,742.40 and 787,059,158.40 is: 1,180,588,737.60
Step by Step Solution
- Step 1: Write the proportion equation
848,281,161.60 : 1,272,421,742.40 = 787,059,158.40 : x - Step 2: Convert to fraction form
848,281,161.60/1,272,421,742.40 = 787,059,158.40/x - Step 3: Cross multiply
848,281,161.60x = 1,272,421,742.40 × 787,059,158.40 - Step 4: Simplify right side
848,281,161.60x = 1,001,471,185,703,205,632 - Step 5: Solve for x
x = 1,001,471,185,703,205,632/848,281,161.60 - Step 6: Final answer
x = 1,180,588,737.60
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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.