Finding the Fourth Proportional to 516,781,770.24, 774,860,429.28 and 205,937,207.04
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Solution
The fourth proportional to 516,781,770.24, 774,860,429.28 and 205,937,207.04 is: 308,781,388.67
Step by Step Solution
- Step 1: Write the proportion equation
516,781,770.24 : 774,860,429.28 = 205,937,207.04 : x - Step 2: Convert to fraction form
516,781,770.24/774,860,429.28 = 205,937,207.04/x - Step 3: Cross multiply
516,781,770.24x = 774,860,429.28 × 205,937,207.04 - Step 4: Simplify right side
516,781,770.24x = 159,572,592,651,738,624 - Step 5: Solve for x
x = 159,572,592,651,738,624/516,781,770.24 - Step 6: Final answer
x = 308,781,388.67
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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.