Finding the Fourth Proportional to 98,118,519.40, 147,177,779.10 and 67,507,517.80
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Solution
The fourth proportional to 98,118,519.40, 147,177,779.10 and 67,507,517.80 is: 101,261,276.70
Step by Step Solution
- Step 1: Write the proportion equation
98,118,519.40 : 147,177,779.10 = 67,507,517.80 : x - Step 2: Convert to fraction form
98,118,519.40/147,177,779.10 = 67,507,517.80/x - Step 3: Cross multiply
98,118,519.40x = 147,177,779.10 × 67,507,517.80 - Step 4: Simplify right side
98,118,519.40x = 9,935,606,542,357,718 - Step 5: Solve for x
x = 9,935,606,542,357,718/98,118,519.40 - Step 6: Final answer
x = 101,261,276.70
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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.