Finding the Fourth Proportional to 42,178,879.68, 63,267,728.88 and 16,620,110.52
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Solution
The fourth proportional to 42,178,879.68, 63,267,728.88 and 16,620,110.52 is: 24,929,933.04
Step by Step Solution
- Step 1: Write the proportion equation
42,178,879.68 : 63,267,728.88 = 16,620,110.52 : x - Step 2: Convert to fraction form
42,178,879.68/63,267,728.88 = 16,620,110.52/x - Step 3: Cross multiply
42,178,879.68x = 63,267,728.88 × 16,620,110.52 - Step 4: Simplify right side
42,178,879.68x = 1,051,516,646,334,995.88 - Step 5: Solve for x
x = 1,051,516,646,334,995.88/42,178,879.68 - Step 6: Final answer
x = 24,929,933.04
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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.