Finding the Fourth Proportional to 1,295,464,273,192, 1,787,796,893,311.80 and 717,400,791,969.12
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Solution
The fourth proportional to 1,295,464,273,192, 1,787,796,893,311.80 and 717,400,791,969.12 is: 990,044,213,246.88
Step by Step Solution
- Step 1: Write the proportion equation
1,295,464,273,192 : 1,787,796,893,311.80 = 717,400,791,969.12 : x - Step 2: Convert to fraction form
1,295,464,273,192/1,787,796,893,311.80 = 717,400,791,969.12/x - Step 3: Cross multiply
1,295,464,273,192x = 1,787,796,893,311.80 × 717,400,791,969.12 - Step 4: Simplify right side
1,295,464,273,192x = 1,282,566,907,141,817,678,954,496 - Step 5: Solve for x
x = 1,282,566,907,141,817,678,954,496/1,295,464,273,192 - Step 6: Final answer
x = 990,044,213,246.88
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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.