Finding the Fourth Proportional to 147,724,478.74, 203,885,094.97 and 85,880,689.57
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Solution
The fourth proportional to 147,724,478.74, 203,885,094.97 and 85,880,689.57 is: 118,530,068.26
Step by Step Solution
- Step 1: Write the proportion equation
147,724,478.74 : 203,885,094.97 = 85,880,689.57 : x - Step 2: Convert to fraction form
147,724,478.74/203,885,094.97 = 85,880,689.57/x - Step 3: Cross multiply
147,724,478.74x = 203,885,094.97 × 85,880,689.57 - Step 4: Simplify right side
147,724,478.74x = 17,509,792,549,068,536 - Step 5: Solve for x
x = 17,509,792,549,068,536/147,724,478.74 - Step 6: Final answer
x = 118,530,068.26
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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.