Finding the Fourth Proportional to 486,774,684.79, 671,980,700.18 and 326,115,305.26
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Solution
The fourth proportional to 486,774,684.79, 671,980,700.18 and 326,115,305.26 is: 450,194,305.53
Step by Step Solution
- Step 1: Write the proportion equation
486,774,684.79 : 671,980,700.18 = 326,115,305.26 : x - Step 2: Convert to fraction form
486,774,684.79/671,980,700.18 = 326,115,305.26/x - Step 3: Cross multiply
486,774,684.79x = 671,980,700.18 × 326,115,305.26 - Step 4: Simplify right side
486,774,684.79x = 219,143,191,168,029,216 - Step 5: Solve for x
x = 219,143,191,168,029,216/486,774,684.79 - Step 6: Final answer
x = 450,194,305.53
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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.