Finding the Fourth Proportional to 99,098,924, 136,756,515.12 and 55,639,793.12
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Solution
The fourth proportional to 99,098,924, 136,756,515.12 and 55,639,793.12 is: 76,782,914.51
Step by Step Solution
- Step 1: Write the proportion equation
99,098,924 : 136,756,515.12 = 55,639,793.12 : x - Step 2: Convert to fraction form
99,098,924/136,756,515.12 = 55,639,793.12/x - Step 3: Cross multiply
99,098,924x = 136,756,515.12 × 55,639,793.12 - Step 4: Simplify right side
99,098,924x = 7,609,104,209,088,952 - Step 5: Solve for x
x = 7,609,104,209,088,952/99,098,924 - Step 6: Final answer
x = 76,782,914.51
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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.