Finding the Fourth Proportional to 115,904,590.56, 159,881,735.76 and 72,368,943.84
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Solution
The fourth proportional to 115,904,590.56, 159,881,735.76 and 72,368,943.84 is: 99,827,559.03
Step by Step Solution
- Step 1: Write the proportion equation
115,904,590.56 : 159,881,735.76 = 72,368,943.84 : x - Step 2: Convert to fraction form
115,904,590.56/159,881,735.76 = 72,368,943.84/x - Step 3: Cross multiply
115,904,590.56x = 159,881,735.76 × 72,368,943.84 - Step 4: Simplify right side
115,904,590.56x = 11,570,472,356,257,160 - Step 5: Solve for x
x = 11,570,472,356,257,160/115,904,590.56 - Step 6: Final answer
x = 99,827,559.03
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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.