Finding the Fourth Proportional to 1,448,239,130.70, 2,172,358,696.05 and 357,722,198.70
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Solution
The fourth proportional to 1,448,239,130.70, 2,172,358,696.05 and 357,722,198.70 is: 536,583,298.05
Step by Step Solution
- Step 1: Write the proportion equation
1,448,239,130.70 : 2,172,358,696.05 = 357,722,198.70 : x - Step 2: Convert to fraction form
1,448,239,130.70/2,172,358,696.05 = 357,722,198.70/x - Step 3: Cross multiply
1,448,239,130.70x = 2,172,358,696.05 × 357,722,198.70 - Step 4: Simplify right side
1,448,239,130.70x = 777,100,929,116,071,040 - Step 5: Solve for x
x = 777,100,929,116,071,040/1,448,239,130.70 - Step 6: Final answer
x = 536,583,298.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.