Finding the Fourth Proportional to 21,129,011.70, 31,696,526.87 and 6,557,190.18
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Solution
The fourth proportional to 21,129,011.70, 31,696,526.87 and 6,557,190.18 is: 9,836,719.18
Step by Step Solution
- Step 1: Write the proportion equation
21,129,011.70 : 31,696,526.87 = 6,557,190.18 : x - Step 2: Convert to fraction form
21,129,011.70/31,696,526.87 = 6,557,190.18/x - Step 3: Cross multiply
21,129,011.70x = 31,696,526.87 × 6,557,190.18 - Step 4: Simplify right side
21,129,011.70x = 207,840,154,732,070.12 - Step 5: Solve for x
x = 207,840,154,732,070.12/21,129,011.70 - Step 6: Final answer
x = 9,836,719.18
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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.