Finding the Fourth Proportional to 1,439,598,661.80, 2,159,397,992.70 and 1,326,224,581.80
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Solution
The fourth proportional to 1,439,598,661.80, 2,159,397,992.70 and 1,326,224,581.80 is: 1,989,336,872.70
Step by Step Solution
- Step 1: Write the proportion equation
1,439,598,661.80 : 2,159,397,992.70 = 1,326,224,581.80 : x - Step 2: Convert to fraction form
1,439,598,661.80/2,159,397,992.70 = 1,326,224,581.80/x - Step 3: Cross multiply
1,439,598,661.80x = 2,159,397,992.70 × 1,326,224,581.80 - Step 4: Simplify right side
1,439,598,661.80x = 2,863,846,699,808,316,416 - Step 5: Solve for x
x = 2,863,846,699,808,316,416/1,439,598,661.80 - Step 6: Final answer
x = 1,989,336,872.70
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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.