Finding the Fourth Proportional to 129,328,298.20, 193,992,447.30 and 83,411,795.80
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Solution
The fourth proportional to 129,328,298.20, 193,992,447.30 and 83,411,795.80 is: 125,117,693.70
Step by Step Solution
- Step 1: Write the proportion equation
129,328,298.20 : 193,992,447.30 = 83,411,795.80 : x - Step 2: Convert to fraction form
129,328,298.20/193,992,447.30 = 83,411,795.80/x - Step 3: Cross multiply
129,328,298.20x = 193,992,447.30 × 83,411,795.80 - Step 4: Simplify right side
129,328,298.20x = 16,181,258,400,929,862 - Step 5: Solve for x
x = 16,181,258,400,929,862/129,328,298.20 - Step 6: Final answer
x = 125,117,693.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.