Finding the Fourth Proportional to 392,731,734.16, 541,849,673.64 and 227,686,358.80
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Solution
The fourth proportional to 392,731,734.16, 541,849,673.64 and 227,686,358.80 is: 314,137,535.82
Step by Step Solution
- Step 1: Write the proportion equation
392,731,734.16 : 541,849,673.64 = 227,686,358.80 : x - Step 2: Convert to fraction form
392,731,734.16/541,849,673.64 = 227,686,358.80/x - Step 3: Cross multiply
392,731,734.16x = 541,849,673.64 × 227,686,358.80 - Step 4: Simplify right side
392,731,734.16x = 123,371,779,208,059,952 - Step 5: Solve for x
x = 123,371,779,208,059,952/392,731,734.16 - Step 6: Final answer
x = 314,137,535.82
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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.