Finding the Fourth Proportional to 748,216,812.33, 1,032,312,413.70 and 522,149,782.68
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Solution
The fourth proportional to 748,216,812.33, 1,032,312,413.70 and 522,149,782.68 is: 720,408,434.55
Step by Step Solution
- Step 1: Write the proportion equation
748,216,812.33 : 1,032,312,413.70 = 522,149,782.68 : x - Step 2: Convert to fraction form
748,216,812.33/1,032,312,413.70 = 522,149,782.68/x - Step 3: Cross multiply
748,216,812.33x = 1,032,312,413.70 × 522,149,782.68 - Step 4: Simplify right side
748,216,812.33x = 539,021,702,471,321,280 - Step 5: Solve for x
x = 539,021,702,471,321,280/748,216,812.33 - Step 6: Final answer
x = 720,408,434.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.