Finding the Fourth Proportional to 420,171,258.68, 579,933,082.86 and 246,386,989.88
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Solution
The fourth proportional to 420,171,258.68, 579,933,082.86 and 246,386,989.88 is: 340,070,777.49
Step by Step Solution
- Step 1: Write the proportion equation
420,171,258.68 : 579,933,082.86 = 246,386,989.88 : x - Step 2: Convert to fraction form
420,171,258.68/579,933,082.86 = 246,386,989.88/x - Step 3: Cross multiply
420,171,258.68x = 579,933,082.86 × 246,386,989.88 - Step 4: Simplify right side
420,171,258.68x = 142,887,966,617,704,016 - Step 5: Solve for x
x = 142,887,966,617,704,016/420,171,258.68 - Step 6: Final answer
x = 340,070,777.49
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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.