Finding the Fourth Proportional to 518,545,767.53, 715,549,900.22 and 292,472,293.05
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Solution
The fourth proportional to 518,545,767.53, 715,549,900.22 and 292,472,293.05 is: 403,587,365.31
Step by Step Solution
- Step 1: Write the proportion equation
518,545,767.53 : 715,549,900.22 = 292,472,293.05 : x - Step 2: Convert to fraction form
518,545,767.53/715,549,900.22 = 292,472,293.05/x - Step 3: Cross multiply
518,545,767.53x = 715,549,900.22 × 292,472,293.05 - Step 4: Simplify right side
518,545,767.53x = 209,278,520,108,676,512 - Step 5: Solve for x
x = 209,278,520,108,676,512/518,545,767.53 - Step 6: Final answer
x = 403,587,365.31
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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.