Finding the Fourth Proportional to 72,602,720.70, 101,719,391.70 and 72,602,720.70
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Solution
The fourth proportional to 72,602,720.70, 101,719,391.70 and 72,602,720.70 is: 101,719,391.70
Step by Step Solution
- Step 1: Write the proportion equation
72,602,720.70 : 101,719,391.70 = 72,602,720.70 : x - Step 2: Convert to fraction form
72,602,720.70/101,719,391.70 = 72,602,720.70/x - Step 3: Cross multiply
72,602,720.70x = 101,719,391.70 × 72,602,720.70 - Step 4: Simplify right side
72,602,720.70x = 7,385,104,585,368,999 - Step 5: Solve for x
x = 7,385,104,585,368,999/72,602,720.70 - Step 6: Final answer
x = 101,719,391.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.