Finding the Fourth Proportional to 2,799,468,067.70, 4,199,202,101.55 and 958,608,931.70
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Solution
The fourth proportional to 2,799,468,067.70, 4,199,202,101.55 and 958,608,931.70 is: 1,437,913,397.55
Step by Step Solution
- Step 1: Write the proportion equation
2,799,468,067.70 : 4,199,202,101.55 = 958,608,931.70 : x - Step 2: Convert to fraction form
2,799,468,067.70/4,199,202,101.55 = 958,608,931.70/x - Step 3: Cross multiply
2,799,468,067.70x = 4,199,202,101.55 × 958,608,931.70 - Step 4: Simplify right side
2,799,468,067.70x = 4,025,392,640,559,240,704 - Step 5: Solve for x
x = 4,025,392,640,559,240,704/2,799,468,067.70 - Step 6: Final answer
x = 1,437,913,397.55
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.