Finding the Fourth Proportional to 621,558,888.42, 857,748,275.37 and 343,097,976.18
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Solution
The fourth proportional to 621,558,888.42, 857,748,275.37 and 343,097,976.18 is: 473,473,556.30
Step by Step Solution
- Step 1: Write the proportion equation
621,558,888.42 : 857,748,275.37 = 343,097,976.18 : x - Step 2: Convert to fraction form
621,558,888.42/857,748,275.37 = 343,097,976.18/x - Step 3: Cross multiply
621,558,888.42x = 857,748,275.37 × 343,097,976.18 - Step 4: Simplify right side
621,558,888.42x = 294,291,697,351,332,352 - Step 5: Solve for x
x = 294,291,697,351,332,352/621,558,888.42 - Step 6: Final answer
x = 473,473,556.30
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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.