Finding the Fourth Proportional to 69,581,588.10, 96,019,960.88 and 38,643,750.28
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Solution
The fourth proportional to 69,581,588.10, 96,019,960.88 and 38,643,750.28 is: 53,326,914.37
Step by Step Solution
- Step 1: Write the proportion equation
69,581,588.10 : 96,019,960.88 = 38,643,750.28 : x - Step 2: Convert to fraction form
69,581,588.10/96,019,960.88 = 38,643,750.28/x - Step 3: Cross multiply
69,581,588.10x = 96,019,960.88 × 38,643,750.28 - Step 4: Simplify right side
69,581,588.10x = 3,710,571,390,142,089 - Step 5: Solve for x
x = 3,710,571,390,142,089/69,581,588.10 - Step 6: Final answer
x = 53,326,914.37
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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.