Finding the Fourth Proportional to 68,336,603,804.79, 102,467,538,013.12 and 54,261,980,646.37
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Solution
The fourth proportional to 68,336,603,804.79, 102,467,538,013.12 and 54,261,980,646.37 is: 81,363,299,534.64
Step by Step Solution
- Step 1: Write the proportion equation
68,336,603,804.79 : 102,467,538,013.12 = 54,261,980,646.37 : x - Step 2: Convert to fraction form
68,336,603,804.79/102,467,538,013.12 = 54,261,980,646.37/x - Step 3: Cross multiply
68,336,603,804.79x = 102,467,538,013.12 × 54,261,980,646.37 - Step 4: Simplify right side
68,336,603,804.79x = 5,560,091,564,548,894,490,624 - Step 5: Solve for x
x = 5,560,091,564,548,894,490,624/68,336,603,804.79 - Step 6: Final answer
x = 81,363,299,534.64
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1.5x scale
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.