Finding the Fourth Proportional to 532,238,708.70, 798,358,063.05 and 388,911,476.70
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Solution
The fourth proportional to 532,238,708.70, 798,358,063.05 and 388,911,476.70 is: 583,367,215.05
Step by Step Solution
- Step 1: Write the proportion equation
532,238,708.70 : 798,358,063.05 = 388,911,476.70 : x - Step 2: Convert to fraction form
532,238,708.70/798,358,063.05 = 388,911,476.70/x - Step 3: Cross multiply
532,238,708.70x = 798,358,063.05 × 388,911,476.70 - Step 4: Simplify right side
532,238,708.70x = 310,490,613,236,127,168 - Step 5: Solve for x
x = 310,490,613,236,127,168/532,238,708.70 - Step 6: Final answer
x = 583,367,215.05
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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.