Finding the Fourth Proportional to 98,415,660.80, 147,623,491.20 and 96,980,770.10
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Solution
The fourth proportional to 98,415,660.80, 147,623,491.20 and 96,980,770.10 is: 145,471,155.15
Step by Step Solution
- Step 1: Write the proportion equation
98,415,660.80 : 147,623,491.20 = 96,980,770.10 : x - Step 2: Convert to fraction form
98,415,660.80/147,623,491.20 = 96,980,770.10/x - Step 3: Cross multiply
98,415,660.80x = 147,623,491.20 × 96,980,770.10 - Step 4: Simplify right side
98,415,660.80x = 14,316,639,861,426,572 - Step 5: Solve for x
x = 14,316,639,861,426,572/98,415,660.80 - Step 6: Final answer
x = 145,471,155.15
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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.