Finding the Fourth Proportional to 542,497,851.21, 813,746,776.83 and 159,545,403.21
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Solution
The fourth proportional to 542,497,851.21, 813,746,776.83 and 159,545,403.21 is: 239,318,104.82
Step by Step Solution
- Step 1: Write the proportion equation
542,497,851.21 : 813,746,776.83 = 159,545,403.21 : x - Step 2: Convert to fraction form
542,497,851.21/813,746,776.83 = 159,545,403.21/x - Step 3: Cross multiply
542,497,851.21x = 813,746,776.83 × 159,545,403.21 - Step 4: Simplify right side
542,497,851.21x = 129,829,557,620,180,256 - Step 5: Solve for x
x = 129,829,557,620,180,256/542,497,851.21 - Step 6: Final answer
x = 239,318,104.82
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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.