Finding the Fourth Proportional to 139,615,223.62, 192,666,657.99 and 76,897,162.06
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Solution
The fourth proportional to 139,615,223.62, 192,666,657.99 and 76,897,162.06 is: 106,116,788.98
Step by Step Solution
- Step 1: Write the proportion equation
139,615,223.62 : 192,666,657.99 = 76,897,162.06 : x - Step 2: Convert to fraction form
139,615,223.62/192,666,657.99 = 76,897,162.06/x - Step 3: Cross multiply
139,615,223.62x = 192,666,657.99 × 76,897,162.06 - Step 4: Simplify right side
139,615,223.62x = 14,815,519,223,015,626 - Step 5: Solve for x
x = 14,815,519,223,015,626/139,615,223.62 - Step 6: Final answer
x = 106,116,788.98
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.