Finding the Fourth Proportional to 103,368,367.84, 142,651,390.40 and 56,961,611.12
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Solution
The fourth proportional to 103,368,367.84, 142,651,390.40 and 56,961,611.12 is: 78,608,700.08
Step by Step Solution
- Step 1: Write the proportion equation
103,368,367.84 : 142,651,390.40 = 56,961,611.12 : x - Step 2: Convert to fraction form
103,368,367.84/142,651,390.40 = 56,961,611.12/x - Step 3: Cross multiply
103,368,367.84x = 142,651,390.40 × 56,961,611.12 - Step 4: Simplify right side
103,368,367.84x = 8,125,653,025,692,101 - Step 5: Solve for x
x = 8,125,653,025,692,101/103,368,367.84 - Step 6: Final answer
x = 78,608,700.08
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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.