Finding the Fourth Proportional to 99,648,112.95, 149,472,169.43 and 86,016,651.30
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Solution
The fourth proportional to 99,648,112.95, 149,472,169.43 and 86,016,651.30 is: 129,024,976.95
Step by Step Solution
- Step 1: Write the proportion equation
99,648,112.95 : 149,472,169.43 = 86,016,651.30 : x - Step 2: Convert to fraction form
99,648,112.95/149,472,169.43 = 86,016,651.30/x - Step 3: Cross multiply
99,648,112.95x = 149,472,169.43 × 86,016,651.30 - Step 4: Simplify right side
99,648,112.95x = 12,857,095,476,484,748 - Step 5: Solve for x
x = 12,857,095,476,484,748/99,648,112.95 - Step 6: Final answer
x = 129,024,976.95
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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.