Finding the Fourth Proportional to 164,989,295.70, 247,483,943.55 and 74,290,031.70
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Solution
The fourth proportional to 164,989,295.70, 247,483,943.55 and 74,290,031.70 is: 111,435,047.55
Step by Step Solution
- Step 1: Write the proportion equation
164,989,295.70 : 247,483,943.55 = 74,290,031.70 : x - Step 2: Convert to fraction form
164,989,295.70/247,483,943.55 = 74,290,031.70/x - Step 3: Cross multiply
164,989,295.70x = 247,483,943.55 × 74,290,031.70 - Step 4: Simplify right side
164,989,295.70x = 18,385,590,011,570,512 - Step 5: Solve for x
x = 18,385,590,011,570,512/164,989,295.70 - Step 6: Final answer
x = 111,435,047.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.