Finding the Fourth Proportional to 636,018,115.38, 877,692,412.84 and 353,754,484.44
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Solution
The fourth proportional to 636,018,115.38, 877,692,412.84 and 353,754,484.44 is: 488,174,187.96
Step by Step Solution
- Step 1: Write the proportion equation
636,018,115.38 : 877,692,412.84 = 353,754,484.44 : x - Step 2: Convert to fraction form
636,018,115.38/877,692,412.84 = 353,754,484.44/x - Step 3: Cross multiply
636,018,115.38x = 877,692,412.84 × 353,754,484.44 - Step 4: Simplify right side
636,018,115.38x = 310,487,627,001,113,856 - Step 5: Solve for x
x = 310,487,627,001,113,856/636,018,115.38 - Step 6: Final answer
x = 488,174,187.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.