Finding the Fourth Proportional to 1,252,071,748.76, 1,878,168,026.39 and 411,695,886.95
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Solution
The fourth proportional to 1,252,071,748.76, 1,878,168,026.39 and 411,695,886.95 is: 617,563,691.73
Step by Step Solution
- Step 1: Write the proportion equation
1,252,071,748.76 : 1,878,168,026.39 = 411,695,886.95 : x - Step 2: Convert to fraction form
1,252,071,748.76/1,878,168,026.39 = 411,695,886.95/x - Step 3: Cross multiply
1,252,071,748.76x = 1,878,168,026.39 × 411,695,886.95 - Step 4: Simplify right side
1,252,071,748.76x = 773,234,051,471,486,720 - Step 5: Solve for x
x = 773,234,051,471,486,720/1,252,071,748.76 - Step 6: Final answer
x = 617,563,691.73
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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.