Finding the Fourth Proportional to 1,137,402,421.70, 1,706,103,632.55 and 984,347,413.70
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Solution
The fourth proportional to 1,137,402,421.70, 1,706,103,632.55 and 984,347,413.70 is: 1,476,521,120.55
Step by Step Solution
- Step 1: Write the proportion equation
1,137,402,421.70 : 1,706,103,632.55 = 984,347,413.70 : x - Step 2: Convert to fraction form
1,137,402,421.70/1,706,103,632.55 = 984,347,413.70/x - Step 3: Cross multiply
1,137,402,421.70x = 1,706,103,632.55 × 984,347,413.70 - Step 4: Simplify right side
1,137,402,421.70x = 1,679,398,698,204,767,744 - Step 5: Solve for x
x = 1,679,398,698,204,767,744/1,137,402,421.70 - Step 6: Final answer
x = 1,476,521,120.55
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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.