Finding the Fourth Proportional to 1,667,941,921.04, 2,301,753,534.42 and 915,267,689.70
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Solution
The fourth proportional to 1,667,941,921.04, 2,301,753,534.42 and 915,267,689.70 is: 1,263,065,945.60
Step by Step Solution
- Step 1: Write the proportion equation
1,667,941,921.04 : 2,301,753,534.42 = 915,267,689.70 : x - Step 2: Convert to fraction form
1,667,941,921.04/2,301,753,534.42 = 915,267,689.70/x - Step 3: Cross multiply
1,667,941,921.04x = 2,301,753,534.42 × 915,267,689.70 - Step 4: Simplify right side
1,667,941,921.04x = 2,106,720,639,707,403,008 - Step 5: Solve for x
x = 2,106,720,639,707,403,008/1,667,941,921.04 - Step 6: Final answer
x = 1,263,065,945.60
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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.