Finding the Fourth Proportional to 207,730,919.52, 311,624,727.12 and 86,534,028
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Solution
The fourth proportional to 207,730,919.52, 311,624,727.12 and 86,534,028 is: 129,812,850.80
Step by Step Solution
- Step 1: Write the proportion equation
207,730,919.52 : 311,624,727.12 = 86,534,028 : x - Step 2: Convert to fraction form
207,730,919.52/311,624,727.12 = 86,534,028/x - Step 3: Cross multiply
207,730,919.52x = 311,624,727.12 × 86,534,028 - Step 4: Simplify right side
207,730,919.52x = 26,966,142,862,094,440 - Step 5: Solve for x
x = 26,966,142,862,094,440/207,730,919.52 - Step 6: Final answer
x = 129,812,850.80
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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.