Finding the Fourth Proportional to 201,955,489.87, 278,686,565.02 and 117,176,041.03
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Solution
The fourth proportional to 201,955,489.87, 278,686,565.02 and 117,176,041.03 is: 161,695,967.75
Step by Step Solution
- Step 1: Write the proportion equation
201,955,489.87 : 278,686,565.02 = 117,176,041.03 : x - Step 2: Convert to fraction form
201,955,489.87/278,686,565.02 = 117,176,041.03/x - Step 3: Cross multiply
201,955,489.87x = 278,686,565.02 × 117,176,041.03 - Step 4: Simplify right side
201,955,489.87x = 32,655,388,377,293,280 - Step 5: Solve for x
x = 32,655,388,377,293,280/201,955,489.87 - Step 6: Final answer
x = 161,695,967.75
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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.