Finding the Fourth Proportional to 855,274,921.68, 1,180,279,391.58 and 464,134,345.68
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Solution
The fourth proportional to 855,274,921.68, 1,180,279,391.58 and 464,134,345.68 is: 640,505,396.85
Step by Step Solution
- Step 1: Write the proportion equation
855,274,921.68 : 1,180,279,391.58 = 464,134,345.68 : x - Step 2: Convert to fraction form
855,274,921.68/1,180,279,391.58 = 464,134,345.68/x - Step 3: Cross multiply
855,274,921.68x = 1,180,279,391.58 × 464,134,345.68 - Step 4: Simplify right side
855,274,921.68x = 547,808,203,130,571,776 - Step 5: Solve for x
x = 547,808,203,130,571,776/855,274,921.68 - Step 6: Final answer
x = 640,505,396.85
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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.