Finding the Fourth Proportional to 139,387,624.08, 192,347,020.35 and 77,506,634.04
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Solution
The fourth proportional to 139,387,624.08, 192,347,020.35 and 77,506,634.04 is: 106,954,761.68
Step by Step Solution
- Step 1: Write the proportion equation
139,387,624.08 : 192,347,020.35 = 77,506,634.04 : x - Step 2: Convert to fraction form
139,387,624.08/192,347,020.35 = 77,506,634.04/x - Step 3: Cross multiply
139,387,624.08x = 192,347,020.35 × 77,506,634.04 - Step 4: Simplify right side
139,387,624.08x = 14,908,170,114,951,884 - Step 5: Solve for x
x = 14,908,170,114,951,884/139,387,624.08 - Step 6: Final answer
x = 106,954,761.68
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1.5x scale
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.