Finding the Fourth Proportional to 386,295,545.80, 579,443,318.70 and 295,596,281.80
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Solution
The fourth proportional to 386,295,545.80, 579,443,318.70 and 295,596,281.80 is: 443,394,422.70
Step by Step Solution
- Step 1: Write the proportion equation
386,295,545.80 : 579,443,318.70 = 295,596,281.80 : x - Step 2: Convert to fraction form
386,295,545.80/579,443,318.70 = 295,596,281.80/x - Step 3: Cross multiply
386,295,545.80x = 579,443,318.70 × 295,596,281.80 - Step 4: Simplify right side
386,295,545.80x = 171,281,290,521,572,416 - Step 5: Solve for x
x = 171,281,290,521,572,416/386,295,545.80 - Step 6: Final answer
x = 443,394,422.70
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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.