Finding the Fourth Proportional to 396,563,085,910.68, 547,258,911,807.53 and 225,294,415,375.18
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Solution
The fourth proportional to 396,563,085,910.68, 547,258,911,807.53 and 225,294,415,375.18 is: 310,907,346,081.89
Step by Step Solution
- Step 1: Write the proportion equation
396,563,085,910.68 : 547,258,911,807.53 = 225,294,415,375.18 : x - Step 2: Convert to fraction form
396,563,085,910.68/547,258,911,807.53 = 225,294,415,375.18/x - Step 3: Cross multiply
396,563,085,910.68x = 547,258,911,807.53 × 225,294,415,375.18 - Step 4: Simplify right side
396,563,085,910.68x = 123,294,376,594,534,668,697,600 - Step 5: Solve for x
x = 123,294,376,594,534,668,697,600/396,563,085,910.68 - Step 6: Final answer
x = 310,907,346,081.89
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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.