Finding the Fourth Proportional to 99,818,656.80, 149,476,042.80 and 65,554,490.40
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Solution
The fourth proportional to 99,818,656.80, 149,476,042.80 and 65,554,490.40 is: 98,166,275.99
Step by Step Solution
- Step 1: Write the proportion equation
99,818,656.80 : 149,476,042.80 = 65,554,490.40 : x - Step 2: Convert to fraction form
99,818,656.80/149,476,042.80 = 65,554,490.40/x - Step 3: Cross multiply
99,818,656.80x = 149,476,042.80 × 65,554,490.40 - Step 4: Simplify right side
99,818,656.80x = 9,798,825,812,762,590 - Step 5: Solve for x
x = 9,798,825,812,762,590/99,818,656.80 - Step 6: Final answer
x = 98,166,275.99
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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.