Finding the Fourth Proportional to 49,378,913.84, 68,088,305.25 and 31,468,776.33
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Solution
The fourth proportional to 49,378,913.84, 68,088,305.25 and 31,468,776.33 is: 43,392,117.85
Step by Step Solution
- Step 1: Write the proportion equation
49,378,913.84 : 68,088,305.25 = 31,468,776.33 : x - Step 2: Convert to fraction form
49,378,913.84/68,088,305.25 = 31,468,776.33/x - Step 3: Cross multiply
49,378,913.84x = 68,088,305.25 × 31,468,776.33 - Step 4: Simplify right side
49,378,913.84x = 2,142,655,648,829,905.25 - Step 5: Solve for x
x = 2,142,655,648,829,905.25/49,378,913.84 - Step 6: Final answer
x = 43,392,117.85
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.