Finding the Fourth Proportional to 100,259,782.42, 138,356,437.97 and 55,598,547.39
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Solution
The fourth proportional to 100,259,782.42, 138,356,437.97 and 55,598,547.39 is: 76,724,852.06
Step by Step Solution
- Step 1: Write the proportion equation
100,259,782.42 : 138,356,437.97 = 55,598,547.39 : x - Step 2: Convert to fraction form
100,259,782.42/138,356,437.97 = 55,598,547.39/x - Step 3: Cross multiply
100,259,782.42x = 138,356,437.97 × 55,598,547.39 - Step 4: Simplify right side
100,259,782.42x = 7,692,416,973,974,252 - Step 5: Solve for x
x = 7,692,416,973,974,252/100,259,782.42 - Step 6: Final answer
x = 76,724,852.06
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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.