Finding the Fourth Proportional to 452,457,786.68, 678,688,847.60 and 137,326,552.98
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Solution
The fourth proportional to 452,457,786.68, 678,688,847.60 and 137,326,552.98 is: 205,990,487.35
Step by Step Solution
- Step 1: Write the proportion equation
452,457,786.68 : 678,688,847.60 = 137,326,552.98 : x - Step 2: Convert to fraction form
452,457,786.68/678,688,847.60 = 137,326,552.98/x - Step 3: Cross multiply
452,457,786.68x = 678,688,847.60 × 137,326,552.98 - Step 4: Simplify right side
452,457,786.68x = 93,201,999,984,601,792 - Step 5: Solve for x
x = 93,201,999,984,601,792/452,457,786.68 - Step 6: Final answer
x = 205,990,487.35
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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.