Finding the Fourth Proportional to 247,243,200.30, 370,917,944.55 and 74,737,451.70
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Solution
The fourth proportional to 247,243,200.30, 370,917,944.55 and 74,737,451.70 is: 112,122,242.12
Step by Step Solution
- Step 1: Write the proportion equation
247,243,200.30 : 370,917,944.55 = 74,737,451.70 : x - Step 2: Convert to fraction form
247,243,200.30/370,917,944.55 = 74,737,451.70/x - Step 3: Cross multiply
247,243,200.30x = 370,917,944.55 × 74,737,451.70 - Step 4: Simplify right side
247,243,200.30x = 27,721,461,965,468,904 - Step 5: Solve for x
x = 27,721,461,965,468,904/247,243,200.30 - Step 6: Final answer
x = 112,122,242.12
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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.