Finding the Fourth Proportional to 145,708,190.84, 218,500,070.52 and 84,339,709.07
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Solution
The fourth proportional to 145,708,190.84, 218,500,070.52 and 84,339,709.07 is: 126,473,551.50
Step by Step Solution
- Step 1: Write the proportion equation
145,708,190.84 : 218,500,070.52 = 84,339,709.07 : x - Step 2: Convert to fraction form
145,708,190.84/218,500,070.52 = 84,339,709.07/x - Step 3: Cross multiply
145,708,190.84x = 218,500,070.52 × 84,339,709.07 - Step 4: Simplify right side
145,708,190.84x = 18,428,232,377,917,084 - Step 5: Solve for x
x = 18,428,232,377,917,084/145,708,190.84 - Step 6: Final answer
x = 126,473,551.50
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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.