Finding the Fourth Proportional to 99,446,686.80, 148,918,087.80 and 79,291,294.80
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Solution
The fourth proportional to 99,446,686.80, 148,918,087.80 and 79,291,294.80 is: 118,736,062.31
Step by Step Solution
- Step 1: Write the proportion equation
99,446,686.80 : 148,918,087.80 = 79,291,294.80 : x - Step 2: Convert to fraction form
99,446,686.80/148,918,087.80 = 79,291,294.80/x - Step 3: Cross multiply
99,446,686.80x = 148,918,087.80 × 79,291,294.80 - Step 4: Simplify right side
99,446,686.80x = 11,807,908,000,802,084 - Step 5: Solve for x
x = 11,807,908,000,802,084/99,446,686.80 - Step 6: Final answer
x = 118,736,062.31
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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.