Finding the Fourth Proportional to 790,566,560.19, 1,090,981,956.51 and 438,165,302.58
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Solution
The fourth proportional to 790,566,560.19, 1,090,981,956.51 and 438,165,302.58 is: 604,668,174.90
Step by Step Solution
- Step 1: Write the proportion equation
790,566,560.19 : 1,090,981,956.51 = 438,165,302.58 : x - Step 2: Convert to fraction form
790,566,560.19/1,090,981,956.51 = 438,165,302.58/x - Step 3: Cross multiply
790,566,560.19x = 1,090,981,956.51 × 438,165,302.58 - Step 4: Simplify right side
790,566,560.19x = 478,030,439,083,524,544 - Step 5: Solve for x
x = 478,030,439,083,524,544/790,566,560.19 - Step 6: Final answer
x = 604,668,174.90
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1.5x scale
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.