Finding the Fourth Proportional to 83,880,973.98, 115,696,115.64 and 55,989,621.63
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Solution
The fourth proportional to 83,880,973.98, 115,696,115.64 and 55,989,621.63 is: 77,225,876.52
Step by Step Solution
- Step 1: Write the proportion equation
83,880,973.98 : 115,696,115.64 = 55,989,621.63 : x - Step 2: Convert to fraction form
83,880,973.98/115,696,115.64 = 55,989,621.63/x - Step 3: Cross multiply
83,880,973.98x = 115,696,115.64 × 55,989,621.63 - Step 4: Simplify right side
83,880,973.98x = 6,477,781,738,744,326 - Step 5: Solve for x
x = 6,477,781,738,744,326/83,880,973.98 - Step 6: Final answer
x = 77,225,876.52
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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.