Finding the Fourth Proportional to 547,243,565.91, 755,196,849.41 and 296,348,390.70
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Solution
The fourth proportional to 547,243,565.91, 755,196,849.41 and 296,348,390.70 is: 408,961,173.65
Step by Step Solution
- Step 1: Write the proportion equation
547,243,565.91 : 755,196,849.41 = 296,348,390.70 : x - Step 2: Convert to fraction form
547,243,565.91/755,196,849.41 = 296,348,390.70/x - Step 3: Cross multiply
547,243,565.91x = 755,196,849.41 × 296,348,390.70 - Step 4: Simplify right side
547,243,565.91x = 223,801,370,984,363,712 - Step 5: Solve for x
x = 223,801,370,984,363,712/547,243,565.91 - Step 6: Final answer
x = 408,961,173.65
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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.