Finding the Fourth Proportional to 258,720,514.29, 387,889,451.82 and 156,461,818.05
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Solution
The fourth proportional to 258,720,514.29, 387,889,451.82 and 156,461,818.05 is: 234,577,026.10
Step by Step Solution
- Step 1: Write the proportion equation
258,720,514.29 : 387,889,451.82 = 156,461,818.05 : x - Step 2: Convert to fraction form
258,720,514.29/387,889,451.82 = 156,461,818.05/x - Step 3: Cross multiply
258,720,514.29x = 387,889,451.82 × 156,461,818.05 - Step 4: Simplify right side
258,720,514.29x = 60,689,888,834,175,088 - Step 5: Solve for x
x = 60,689,888,834,175,088/258,720,514.29 - Step 6: Final answer
x = 234,577,026.10
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.