Finding the Fourth Proportional to 151,346,423.35, 208,858,062.36 and 81,731,798.13
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Solution
The fourth proportional to 151,346,423.35, 208,858,062.36 and 81,731,798.13 is: 112,789,880.41
Step by Step Solution
- Step 1: Write the proportion equation
151,346,423.35 : 208,858,062.36 = 81,731,798.13 : x - Step 2: Convert to fraction form
151,346,423.35/208,858,062.36 = 81,731,798.13/x - Step 3: Cross multiply
151,346,423.35x = 208,858,062.36 × 81,731,798.13 - Step 4: Simplify right side
151,346,423.35x = 17,070,344,990,630,472 - Step 5: Solve for x
x = 17,070,344,990,630,472/151,346,423.35 - Step 6: Final answer
x = 112,789,880.41
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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.