Finding the Fourth Proportional to 1,623,998,666.28, 2,241,119,818.11 and 881,442,882.12
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Solution
The fourth proportional to 1,623,998,666.28, 2,241,119,818.11 and 881,442,882.12 is: 1,216,392,077.57
Step by Step Solution
- Step 1: Write the proportion equation
1,623,998,666.28 : 2,241,119,818.11 = 881,442,882.12 : x - Step 2: Convert to fraction form
1,623,998,666.28/2,241,119,818.11 = 881,442,882.12/x - Step 3: Cross multiply
1,623,998,666.28x = 2,241,119,818.11 × 881,442,882.12 - Step 4: Simplify right side
1,623,998,666.28x = 1,975,419,111,651,128,576 - Step 5: Solve for x
x = 1,975,419,111,651,128,576/1,623,998,666.28 - Step 6: Final answer
x = 1,216,392,077.57
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.