Finding the Fourth Proportional to 186,748,567.20, 257,734,881.24 and 155,331,187.68
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Solution
The fourth proportional to 186,748,567.20, 257,734,881.24 and 155,331,187.68 is: 214,375,220.17
Step by Step Solution
- Step 1: Write the proportion equation
186,748,567.20 : 257,734,881.24 = 155,331,187.68 : x - Step 2: Convert to fraction form
186,748,567.20/257,734,881.24 = 155,331,187.68/x - Step 3: Cross multiply
186,748,567.20x = 257,734,881.24 × 155,331,187.68 - Step 4: Simplify right side
186,748,567.20x = 40,034,265,209,572,952 - Step 5: Solve for x
x = 40,034,265,209,572,952/186,748,567.20 - Step 6: Final answer
x = 214,375,220.17
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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.