Finding the Fourth Proportional to 102,808,124.09, 141,874,384.46 and 55,765,080.68
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Solution
The fourth proportional to 102,808,124.09, 141,874,384.46 and 55,765,080.68 is: 76,955,362.87
Step by Step Solution
- Step 1: Write the proportion equation
102,808,124.09 : 141,874,384.46 = 55,765,080.68 : x - Step 2: Convert to fraction form
102,808,124.09/141,874,384.46 = 55,765,080.68/x - Step 3: Cross multiply
102,808,124.09x = 141,874,384.46 × 55,765,080.68 - Step 4: Simplify right side
102,808,124.09x = 7,911,636,494,849,041 - Step 5: Solve for x
x = 7,911,636,494,849,041/102,808,124.09 - Step 6: Final answer
x = 76,955,362.87
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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.