Finding the Fourth Proportional to 253,128,913.38, 349,372,537.18 and 154,041,585.84
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Solution
The fourth proportional to 253,128,913.38, 349,372,537.18 and 154,041,585.84 is: 212,610,637.63
Step by Step Solution
- Step 1: Write the proportion equation
253,128,913.38 : 349,372,537.18 = 154,041,585.84 : x - Step 2: Convert to fraction form
253,128,913.38/349,372,537.18 = 154,041,585.84/x - Step 3: Cross multiply
253,128,913.38x = 349,372,537.18 × 154,041,585.84 - Step 4: Simplify right side
253,128,913.38x = 53,817,899,676,151,560 - Step 5: Solve for x
x = 53,817,899,676,151,560/253,128,913.38 - Step 6: Final answer
x = 212,610,637.63
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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.