Finding the Fourth Proportional to 556,652,562.09, 768,159,490.59 and 309,149,859.57
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Solution
The fourth proportional to 556,652,562.09, 768,159,490.59 and 309,149,859.57 is: 426,615,118.33
Step by Step Solution
- Step 1: Write the proportion equation
556,652,562.09 : 768,159,490.59 = 309,149,859.57 : x - Step 2: Convert to fraction form
556,652,562.09/768,159,490.59 = 309,149,859.57/x - Step 3: Cross multiply
556,652,562.09x = 768,159,490.59 × 309,149,859.57 - Step 4: Simplify right side
556,652,562.09x = 237,476,398,643,261,248 - Step 5: Solve for x
x = 237,476,398,643,261,248/556,652,562.09 - Step 6: Final answer
x = 426,615,118.33
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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.