Finding the Fourth Proportional to 499,939,609.12, 689,886,225.12 and 276,908,068.96
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Solution
The fourth proportional to 499,939,609.12, 689,886,225.12 and 276,908,068.96 is: 382,116,277.48
Step by Step Solution
- Step 1: Write the proportion equation
499,939,609.12 : 689,886,225.12 = 276,908,068.96 : x - Step 2: Convert to fraction form
499,939,609.12/689,886,225.12 = 276,908,068.96/x - Step 3: Cross multiply
499,939,609.12x = 689,886,225.12 × 276,908,068.96 - Step 4: Simplify right side
499,939,609.12x = 191,035,062,400,083,040 - Step 5: Solve for x
x = 191,035,062,400,083,040/499,939,609.12 - Step 6: Final answer
x = 382,116,277.48
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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.