Finding the Fourth Proportional to 516,781,771.24, 774,860,430.78 and 205,937,208.04
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Solution
The fourth proportional to 516,781,771.24, 774,860,430.78 and 205,937,208.04 is: 308,781,390.17
Step by Step Solution
- Step 1: Write the proportion equation
516,781,771.24 : 774,860,430.78 = 205,937,208.04 : x - Step 2: Convert to fraction form
516,781,771.24/774,860,430.78 = 205,937,208.04/x - Step 3: Cross multiply
516,781,771.24x = 774,860,430.78 × 205,937,208.04 - Step 4: Simplify right side
516,781,771.24x = 159,572,593,735,504,864 - Step 5: Solve for x
x = 159,572,593,735,504,864/516,781,771.24 - Step 6: Final answer
x = 308,781,390.17
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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.