Finding the Fourth Proportional to 186,748,567.69, 257,734,881.92 and 155,331,188.18
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Solution
The fourth proportional to 186,748,567.69, 257,734,881.92 and 155,331,188.18 is: 214,375,220.86
Step by Step Solution
- Step 1: Write the proportion equation
186,748,567.69 : 257,734,881.92 = 155,331,188.18 : x - Step 2: Convert to fraction form
186,748,567.69/257,734,881.92 = 155,331,188.18/x - Step 3: Cross multiply
186,748,567.69x = 257,734,881.92 × 155,331,188.18 - Step 4: Simplify right side
186,748,567.69x = 40,034,265,443,288,944 - Step 5: Solve for x
x = 40,034,265,443,288,944/186,748,567.69 - Step 6: Final answer
x = 214,375,220.86
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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.