Finding the Fourth Proportional to 98,291,293.20, 147,436,939.80 and 92,232,865.80
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Solution
The fourth proportional to 98,291,293.20, 147,436,939.80 and 92,232,865.80 is: 138,349,298.70
Step by Step Solution
- Step 1: Write the proportion equation
98,291,293.20 : 147,436,939.80 = 92,232,865.80 : x - Step 2: Convert to fraction form
98,291,293.20/147,436,939.80 = 92,232,865.80/x - Step 3: Cross multiply
98,291,293.20x = 147,436,939.80 × 92,232,865.80 - Step 4: Simplify right side
98,291,293.20x = 13,598,531,482,536,080 - Step 5: Solve for x
x = 13,598,531,482,536,080/98,291,293.20 - Step 6: Final answer
x = 138,349,298.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.