Finding the Fourth Proportional to 134,764,542.07, 185,975,068.35 and 72,884,880.63
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Solution
The fourth proportional to 134,764,542.07, 185,975,068.35 and 72,884,880.63 is: 100,581,135.43
Step by Step Solution
- Step 1: Write the proportion equation
134,764,542.07 : 185,975,068.35 = 72,884,880.63 : x - Step 2: Convert to fraction form
134,764,542.07/185,975,068.35 = 72,884,880.63/x - Step 3: Cross multiply
134,764,542.07x = 185,975,068.35 × 72,884,880.63 - Step 4: Simplify right side
134,764,542.07x = 13,554,770,656,845,840 - Step 5: Solve for x
x = 13,554,770,656,845,840/134,764,542.07 - Step 6: Final answer
x = 100,581,135.43
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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.