Finding the Fourth Proportional to 311,126,763.82, 429,372,152.76 and 171,894,536.26
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Solution
The fourth proportional to 311,126,763.82, 429,372,152.76 and 171,894,536.26 is: 237,223,973.20
Step by Step Solution
- Step 1: Write the proportion equation
311,126,763.82 : 429,372,152.76 = 171,894,536.26 : x - Step 2: Convert to fraction form
311,126,763.82/429,372,152.76 = 171,894,536.26/x - Step 3: Cross multiply
311,126,763.82x = 429,372,152.76 × 171,894,536.26 - Step 4: Simplify right side
311,126,763.82x = 73,806,727,081,638,080 - Step 5: Solve for x
x = 73,806,727,081,638,080/311,126,763.82 - Step 6: Final answer
x = 237,223,973.20
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.