Finding the Fourth Proportional to 1,418,510,521.94, 2,125,920,174.03 and 577,172,781.95
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Solution
The fourth proportional to 1,418,510,521.94, 2,125,920,174.03 and 577,172,781.95 is: 865,008,219.58
Step by Step Solution
- Step 1: Write the proportion equation
1,418,510,521.94 : 2,125,920,174.03 = 577,172,781.95 : x - Step 2: Convert to fraction form
1,418,510,521.94/2,125,920,174.03 = 577,172,781.95/x - Step 3: Cross multiply
1,418,510,521.94x = 2,125,920,174.03 × 577,172,781.95 - Step 4: Simplify right side
1,418,510,521.94x = 1,227,023,261,037,893,632 - Step 5: Solve for x
x = 1,227,023,261,037,893,632/1,418,510,521.94 - Step 6: Final answer
x = 865,008,219.58
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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.