Finding the Fourth Proportional to 170,170,985.43, 234,944,566.74 and 138,883,774.50
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Solution
The fourth proportional to 170,170,985.43, 234,944,566.74 and 138,883,774.50 is: 191,748,247.47
Step by Step Solution
- Step 1: Write the proportion equation
170,170,985.43 : 234,944,566.74 = 138,883,774.50 : x - Step 2: Convert to fraction form
170,170,985.43/234,944,566.74 = 138,883,774.50/x - Step 3: Cross multiply
170,170,985.43x = 234,944,566.74 × 138,883,774.50 - Step 4: Simplify right side
170,170,985.43x = 32,629,988,227,118,360 - Step 5: Solve for x
x = 32,629,988,227,118,360/170,170,985.43 - Step 6: Final answer
x = 191,748,247.47
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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.