Finding the Fourth Proportional to 997,278,316.80, 1,495,917,475.20 and 584,029,795.20
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Solution
The fourth proportional to 997,278,316.80, 1,495,917,475.20 and 584,029,795.20 is: 876,044,692.80
Step by Step Solution
- Step 1: Write the proportion equation
997,278,316.80 : 1,495,917,475.20 = 584,029,795.20 : x - Step 2: Convert to fraction form
997,278,316.80/1,495,917,475.20 = 584,029,795.20/x - Step 3: Cross multiply
997,278,316.80x = 1,495,917,475.20 × 584,029,795.20 - Step 4: Simplify right side
997,278,316.80x = 873,660,376,677,157,120 - Step 5: Solve for x
x = 873,660,376,677,157,120/997,278,316.80 - Step 6: Final answer
x = 876,044,692.80
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Double scale
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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.