Finding the Fourth Proportional to 425,730,413.80, 638,595,620.70 and 183,865,709.80
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Solution
The fourth proportional to 425,730,413.80, 638,595,620.70 and 183,865,709.80 is: 275,798,564.70
Step by Step Solution
- Step 1: Write the proportion equation
425,730,413.80 : 638,595,620.70 = 183,865,709.80 : x - Step 2: Convert to fraction form
425,730,413.80/638,595,620.70 = 183,865,709.80/x - Step 3: Cross multiply
425,730,413.80x = 638,595,620.70 × 183,865,709.80 - Step 4: Simplify right side
425,730,413.80x = 117,415,837,075,177,088 - Step 5: Solve for x
x = 117,415,837,075,177,088/425,730,413.80 - Step 6: Final answer
x = 275,798,564.70
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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.