Finding the Fourth Proportional to 921,678,567.12, 1,382,519,250 and 376,420,101.12
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Solution
The fourth proportional to 921,678,567.12, 1,382,519,250 and 376,420,101.12 is: 564,630,723.17
Step by Step Solution
- Step 1: Write the proportion equation
921,678,567.12 : 1,382,519,250 = 376,420,101.12 : x - Step 2: Convert to fraction form
921,678,567.12/1,382,519,250 = 376,420,101.12/x - Step 3: Cross multiply
921,678,567.12x = 1,382,519,250 × 376,420,101.12 - Step 4: Simplify right side
921,678,567.12x = 520,408,035,885,346,560 - Step 5: Solve for x
x = 520,408,035,885,346,560/921,678,567.12 - Step 6: Final answer
x = 564,630,723.17
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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.