Finding the Fourth Proportional to 156,845,317.97, 216,445,342.46 and 86,279,409.21
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Solution
The fourth proportional to 156,845,317.97, 216,445,342.46 and 86,279,409.21 is: 119,064,926.61
Step by Step Solution
- Step 1: Write the proportion equation
156,845,317.97 : 216,445,342.46 = 86,279,409.21 : x - Step 2: Convert to fraction form
156,845,317.97/216,445,342.46 = 86,279,409.21/x - Step 3: Cross multiply
156,845,317.97x = 216,445,342.46 × 86,279,409.21 - Step 4: Simplify right side
156,845,317.97x = 18,674,776,272,191,304 - Step 5: Solve for x
x = 18,674,776,272,191,304/156,845,317.97 - Step 6: Final answer
x = 119,064,926.61
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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.