Finding the Fourth Proportional to 239,163,915.80, 330,046,201.86 and 129,155,619.08
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Solution
The fourth proportional to 239,163,915.80, 330,046,201.86 and 129,155,619.08 is: 178,234,753.28
Step by Step Solution
- Step 1: Write the proportion equation
239,163,915.80 : 330,046,201.86 = 129,155,619.08 : x - Step 2: Convert to fraction form
239,163,915.80/330,046,201.86 = 129,155,619.08/x - Step 3: Cross multiply
239,163,915.80x = 330,046,201.86 × 129,155,619.08 - Step 4: Simplify right side
239,163,915.80x = 42,627,321,526,230,952 - Step 5: Solve for x
x = 42,627,321,526,230,952/239,163,915.80 - Step 6: Final answer
x = 178,234,753.28
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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.