Finding the Fourth Proportional to 409,472,023.80, 614,208,035.70 and 133,122,703.80
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Solution
The fourth proportional to 409,472,023.80, 614,208,035.70 and 133,122,703.80 is: 199,684,055.70
Step by Step Solution
- Step 1: Write the proportion equation
409,472,023.80 : 614,208,035.70 = 133,122,703.80 : x - Step 2: Convert to fraction form
409,472,023.80/614,208,035.70 = 133,122,703.80/x - Step 3: Cross multiply
409,472,023.80x = 614,208,035.70 × 133,122,703.80 - Step 4: Simplify right side
409,472,023.80x = 81,765,034,408,070,928 - Step 5: Solve for x
x = 81,765,034,408,070,928/409,472,023.80 - Step 6: Final answer
x = 199,684,055.70
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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.