Finding the Fourth Proportional to 119,849,693.12, 165,392,573.91 and 64,845,549.62
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Solution
The fourth proportional to 119,849,693.12, 165,392,573.91 and 64,845,549.62 is: 89,486,857.07
Step by Step Solution
- Step 1: Write the proportion equation
119,849,693.12 : 165,392,573.91 = 64,845,549.62 : x - Step 2: Convert to fraction form
119,849,693.12/165,392,573.91 = 64,845,549.62/x - Step 3: Cross multiply
119,849,693.12x = 165,392,573.91 × 64,845,549.62 - Step 4: Simplify right side
119,849,693.12x = 10,724,972,358,260,422 - Step 5: Solve for x
x = 10,724,972,358,260,422/119,849,693.12 - Step 6: Final answer
x = 89,486,857.07
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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.