Finding the Fourth Proportional to 278,502,904.05, 417,754,356.08 and 74,030,979.30
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Solution
The fourth proportional to 278,502,904.05, 417,754,356.08 and 74,030,979.30 is: 111,046,468.95
Step by Step Solution
- Step 1: Write the proportion equation
278,502,904.05 : 417,754,356.08 = 74,030,979.30 : x - Step 2: Convert to fraction form
278,502,904.05/417,754,356.08 = 74,030,979.30/x - Step 3: Cross multiply
278,502,904.05x = 417,754,356.08 × 74,030,979.30 - Step 4: Simplify right side
278,502,904.05x = 30,926,764,087,073,152 - Step 5: Solve for x
x = 30,926,764,087,073,152/278,502,904.05 - Step 6: Final answer
x = 111,046,468.95
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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.