Finding the Fourth Proportional to 1,053,251,305.20, 1,454,463,825.93 and 788,473,620.90
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Solution
The fourth proportional to 1,053,251,305.20, 1,454,463,825.93 and 788,473,620.90 is: 1,088,825,006.57
Step by Step Solution
- Step 1: Write the proportion equation
1,053,251,305.20 : 1,454,463,825.93 = 788,473,620.90 : x - Step 2: Convert to fraction form
1,053,251,305.20/1,454,463,825.93 = 788,473,620.90/x - Step 3: Cross multiply
1,053,251,305.20x = 1,454,463,825.93 × 788,473,620.90 - Step 4: Simplify right side
1,053,251,305.20x = 1,146,806,359,299,094,400 - Step 5: Solve for x
x = 1,146,806,359,299,094,400/1,053,251,305.20 - Step 6: Final answer
x = 1,088,825,006.57
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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.