Finding the Fourth Proportional to 278,756,433.48, 418,107,405.06 and 84,669,534.12
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Solution
The fourth proportional to 278,756,433.48, 418,107,405.06 and 84,669,534.12 is: 126,996,025.73
Step by Step Solution
- Step 1: Write the proportion equation
278,756,433.48 : 418,107,405.06 = 84,669,534.12 : x - Step 2: Convert to fraction form
278,756,433.48/418,107,405.06 = 84,669,534.12/x - Step 3: Cross multiply
278,756,433.48x = 418,107,405.06 × 84,669,534.12 - Step 4: Simplify right side
278,756,433.48x = 35,400,959,198,552,332 - Step 5: Solve for x
x = 35,400,959,198,552,332/278,756,433.48 - Step 6: Final answer
x = 126,996,025.73
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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.