Finding the Fourth Proportional to 103,615,389.70, 155,218,381.35 and 52,534,068.10
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Solution
The fourth proportional to 103,615,389.70, 155,218,381.35 and 52,534,068.10 is: 78,697,315.52
Step by Step Solution
- Step 1: Write the proportion equation
103,615,389.70 : 155,218,381.35 = 52,534,068.10 : x - Step 2: Convert to fraction form
103,615,389.70/155,218,381.35 = 52,534,068.10/x - Step 3: Cross multiply
103,615,389.70x = 155,218,381.35 × 52,534,068.10 - Step 4: Simplify right side
103,615,389.70x = 8,154,253,016,212,670 - Step 5: Solve for x
x = 8,154,253,016,212,670/103,615,389.70 - Step 6: Final answer
x = 78,697,315.52
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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.