Finding the Fourth Proportional to 2,165,263,305.34, 2,987,551,226.48 and 1,225,465,946.92
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Solution
The fourth proportional to 2,165,263,305.34, 2,987,551,226.48 and 1,225,465,946.92 is: 1,690,853,155.69
Step by Step Solution
- Step 1: Write the proportion equation
2,165,263,305.34 : 2,987,551,226.48 = 1,225,465,946.92 : x - Step 2: Convert to fraction form
2,165,263,305.34/2,987,551,226.48 = 1,225,465,946.92/x - Step 3: Cross multiply
2,165,263,305.34x = 2,987,551,226.48 × 1,225,465,946.92 - Step 4: Simplify right side
2,165,263,305.34x = 3,661,142,292,730,320,896 - Step 5: Solve for x
x = 3,661,142,292,730,320,896/2,165,263,305.34 - Step 6: Final answer
x = 1,690,853,155.69
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1.5x scale
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.