Finding the Fourth Proportional to 412,785,911.97, 569,637,351.09 and 224,607,857.31
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Solution
The fourth proportional to 412,785,911.97, 569,637,351.09 and 224,607,857.31 is: 309,954,921.33
Step by Step Solution
- Step 1: Write the proportion equation
412,785,911.97 : 569,637,351.09 = 224,607,857.31 : x - Step 2: Convert to fraction form
412,785,911.97/569,637,351.09 = 224,607,857.31/x - Step 3: Cross multiply
412,785,911.97x = 569,637,351.09 × 224,607,857.31 - Step 4: Simplify right side
412,785,911.97x = 127,945,024,872,069,104 - Step 5: Solve for x
x = 127,945,024,872,069,104/412,785,911.97 - Step 6: Final answer
x = 309,954,921.33
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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.