Finding the Fourth Proportional to 70,871,750.60, 106,307,625.90 and 69,528,057.80
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Solution
The fourth proportional to 70,871,750.60, 106,307,625.90 and 69,528,057.80 is: 104,292,086.70
Step by Step Solution
- Step 1: Write the proportion equation
70,871,750.60 : 106,307,625.90 = 69,528,057.80 : x - Step 2: Convert to fraction form
70,871,750.60/106,307,625.90 = 69,528,057.80/x - Step 3: Cross multiply
70,871,750.60x = 106,307,625.90 × 69,528,057.80 - Step 4: Simplify right side
70,871,750.60x = 7,391,362,758,155,977 - Step 5: Solve for x
x = 7,391,362,758,155,977/70,871,750.60 - Step 6: Final answer
x = 104,292,086.70
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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.