Finding the Fourth Proportional to 810,273,112.54, 1,117,559,959.93 and 697,434,653.09
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Solution
The fourth proportional to 810,273,112.54, 1,117,559,959.93 and 697,434,653.09 is: 961,928,800.18
Step by Step Solution
- Step 1: Write the proportion equation
810,273,112.54 : 1,117,559,959.93 = 697,434,653.09 : x - Step 2: Convert to fraction form
810,273,112.54/1,117,559,959.93 = 697,434,653.09/x - Step 3: Cross multiply
810,273,112.54x = 1,117,559,959.93 × 697,434,653.09 - Step 4: Simplify right side
810,273,112.54x = 779,425,042,961,053,952 - Step 5: Solve for x
x = 779,425,042,961,053,952/810,273,112.54 - Step 6: Final answer
x = 961,928,800.18
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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.