Finding the Fourth Proportional to 142,685,228.08, 196,906,622.52 and 77,495,132.08
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Solution
The fourth proportional to 142,685,228.08, 196,906,622.52 and 77,495,132.08 is: 106,943,829.61
Step by Step Solution
- Step 1: Write the proportion equation
142,685,228.08 : 196,906,622.52 = 77,495,132.08 : x - Step 2: Convert to fraction form
142,685,228.08/196,906,622.52 = 77,495,132.08/x - Step 3: Cross multiply
142,685,228.08x = 196,906,622.52 × 77,495,132.08 - Step 4: Simplify right side
142,685,228.08x = 15,259,304,719,614,102 - Step 5: Solve for x
x = 15,259,304,719,614,102/142,685,228.08 - Step 6: Final answer
x = 106,943,829.61
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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.