Finding the Fourth Proportional to 579,714,232.80, 869,273,479.80 and 170,717,239.20
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Solution
The fourth proportional to 579,714,232.80, 869,273,479.80 and 170,717,239.20 is: 255,988,140.68
Step by Step Solution
- Step 1: Write the proportion equation
579,714,232.80 : 869,273,479.80 = 170,717,239.20 : x - Step 2: Convert to fraction form
579,714,232.80/869,273,479.80 = 170,717,239.20/x - Step 3: Cross multiply
579,714,232.80x = 869,273,479.80 × 170,717,239.20 - Step 4: Simplify right side
579,714,232.80x = 148,399,968,581,232,960 - Step 5: Solve for x
x = 148,399,968,581,232,960/579,714,232.80 - Step 6: Final answer
x = 255,988,140.68
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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.