Finding the Fourth Proportional to 1,488,206,320.16, 2,053,708,423.44 and 819,137,060
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Solution
The fourth proportional to 1,488,206,320.16, 2,053,708,423.44 and 819,137,060 is: 1,130,400,171.86
Step by Step Solution
- Step 1: Write the proportion equation
1,488,206,320.16 : 2,053,708,423.44 = 819,137,060 : x - Step 2: Convert to fraction form
1,488,206,320.16/2,053,708,423.44 = 819,137,060/x - Step 3: Cross multiply
1,488,206,320.16x = 2,053,708,423.44 × 819,137,060 - Step 4: Simplify right side
1,488,206,320.16x = 1,682,268,680,073,876,736 - Step 5: Solve for x
x = 1,682,268,680,073,876,736/1,488,206,320.16 - Step 6: Final answer
x = 1,130,400,171.86
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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.