Finding the Fourth Proportional to 755,168,266.32, 1,042,276,963.20 and 425,143,405.44
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Solution
The fourth proportional to 755,168,266.32, 1,042,276,963.20 and 425,143,405.44 is: 586,779,393.82
Step by Step Solution
- Step 1: Write the proportion equation
755,168,266.32 : 1,042,276,963.20 = 425,143,405.44 : x - Step 2: Convert to fraction form
755,168,266.32/1,042,276,963.20 = 425,143,405.44/x - Step 3: Cross multiply
755,168,266.32x = 1,042,276,963.20 × 425,143,405.44 - Step 4: Simplify right side
755,168,266.32x = 443,117,177,546,509,568 - Step 5: Solve for x
x = 443,117,177,546,509,568/755,168,266.32 - Step 6: Final answer
x = 586,779,393.82
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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.