Finding the Fourth Proportional to 99,075,938.40, 148,135,610.70 and 73,247,905.80
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Solution
The fourth proportional to 99,075,938.40, 148,135,610.70 and 73,247,905.80 is: 109,518,248.66
Step by Step Solution
- Step 1: Write the proportion equation
99,075,938.40 : 148,135,610.70 = 73,247,905.80 : x - Step 2: Convert to fraction form
99,075,938.40/148,135,610.70 = 73,247,905.80/x - Step 3: Cross multiply
99,075,938.40x = 148,135,610.70 × 73,247,905.80 - Step 4: Simplify right side
99,075,938.40x = 10,850,623,258,179,070 - Step 5: Solve for x
x = 10,850,623,258,179,070/99,075,938.40 - Step 6: Final answer
x = 109,518,248.66
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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.