Finding the Fourth Proportional to 145,937,038.30, 201,393,109.80 and 79,857,534.06
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Solution
The fourth proportional to 145,937,038.30, 201,393,109.80 and 79,857,534.06 is: 110,203,395.33
Step by Step Solution
- Step 1: Write the proportion equation
145,937,038.30 : 201,393,109.80 = 79,857,534.06 : x - Step 2: Convert to fraction form
145,937,038.30/201,393,109.80 = 79,857,534.06/x - Step 3: Cross multiply
145,937,038.30x = 201,393,109.80 × 79,857,534.06 - Step 4: Simplify right side
145,937,038.30x = 16,082,757,125,302,822 - Step 5: Solve for x
x = 16,082,757,125,302,822/145,937,038.30 - Step 6: Final answer
x = 110,203,395.33
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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.