Finding the Fourth Proportional to 819,307,545.80, 1,228,961,318.70 and 819,307,545.80
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Solution
The fourth proportional to 819,307,545.80, 1,228,961,318.70 and 819,307,545.80 is: 1,228,961,318.70
Step by Step Solution
- Step 1: Write the proportion equation
819,307,545.80 : 1,228,961,318.70 = 819,307,545.80 : x - Step 2: Convert to fraction form
819,307,545.80/1,228,961,318.70 = 819,307,545.80/x - Step 3: Cross multiply
819,307,545.80x = 1,228,961,318.70 × 819,307,545.80 - Step 4: Simplify right side
819,307,545.80x = 1,006,897,281,907,228,672 - Step 5: Solve for x
x = 1,006,897,281,907,228,672/819,307,545.80 - Step 6: Final answer
x = 1,228,961,318.70
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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.