Finding the Fourth Proportional to 91,117,989.90, 125,742,744.18 and 51,433,875.54
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Solution
The fourth proportional to 91,117,989.90, 125,742,744.18 and 51,433,875.54 is: 70,978,702.02
Step by Step Solution
- Step 1: Write the proportion equation
91,117,989.90 : 125,742,744.18 = 51,433,875.54 : x - Step 2: Convert to fraction form
91,117,989.90/125,742,744.18 = 51,433,875.54/x - Step 3: Cross multiply
91,117,989.90x = 125,742,744.18 × 51,433,875.54 - Step 4: Simplify right side
91,117,989.90x = 6,467,436,654,212,180 - Step 5: Solve for x
x = 6,467,436,654,212,180/91,117,989.90 - Step 6: Final answer
x = 70,978,702.02
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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.