Finding the Fourth Proportional to 468,387,453.84, 646,162,718.76 and 282,689,108.88
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Solution
The fourth proportional to 468,387,453.84, 646,162,718.76 and 282,689,108.88 is: 389,983,040.02
Step by Step Solution
- Step 1: Write the proportion equation
468,387,453.84 : 646,162,718.76 = 282,689,108.88 : x - Step 2: Convert to fraction form
468,387,453.84/646,162,718.76 = 282,689,108.88/x - Step 3: Cross multiply
468,387,453.84x = 646,162,718.76 × 282,689,108.88 - Step 4: Simplify right side
468,387,453.84x = 182,663,163,157,742,464 - Step 5: Solve for x
x = 182,663,163,157,742,464/468,387,453.84 - Step 6: Final answer
x = 389,983,040.02
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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.