Finding the Fourth Proportional to 865,754,330.19, 1,194,708,967.97 and 469,268,807.09
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Solution
The fourth proportional to 865,754,330.19, 1,194,708,967.97 and 469,268,807.09 is: 647,573,604.51
Step by Step Solution
- Step 1: Write the proportion equation
865,754,330.19 : 1,194,708,967.97 = 469,268,807.09 : x - Step 2: Convert to fraction form
865,754,330.19/1,194,708,967.97 = 469,268,807.09/x - Step 3: Cross multiply
865,754,330.19x = 1,194,708,967.97 × 469,268,807.09 - Step 4: Simplify right side
865,754,330.19x = 560,639,652,219,006,912 - Step 5: Solve for x
x = 560,639,652,219,006,912/865,754,330.19 - Step 6: Final answer
x = 647,573,604.51
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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.