Finding the Fourth Proportional to 100,624,651.04, 138,858,802.08 and 56,573,513.84
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Solution
The fourth proportional to 100,624,651.04, 138,858,802.08 and 56,573,513.84 is: 78,069,640.79
Step by Step Solution
- Step 1: Write the proportion equation
100,624,651.04 : 138,858,802.08 = 56,573,513.84 : x - Step 2: Convert to fraction form
100,624,651.04/138,858,802.08 = 56,573,513.84/x - Step 3: Cross multiply
100,624,651.04x = 138,858,802.08 × 56,573,513.84 - Step 4: Simplify right side
100,624,651.04x = 7,855,730,361,278,702 - Step 5: Solve for x
x = 7,855,730,361,278,702/100,624,651.04 - Step 6: Final answer
x = 78,069,640.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.