Finding the Fourth Proportional to 628,722,083.80, 943,083,125.70 and 219,735,587.80
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Solution
The fourth proportional to 628,722,083.80, 943,083,125.70 and 219,735,587.80 is: 329,603,381.70
Step by Step Solution
- Step 1: Write the proportion equation
628,722,083.80 : 943,083,125.70 = 219,735,587.80 : x - Step 2: Convert to fraction form
628,722,083.80/943,083,125.70 = 219,735,587.80/x - Step 3: Cross multiply
628,722,083.80x = 943,083,125.70 × 219,735,587.80 - Step 4: Simplify right side
628,722,083.80x = 207,228,924,969,950,816 - Step 5: Solve for x
x = 207,228,924,969,950,816/628,722,083.80 - Step 6: Final answer
x = 329,603,381.70
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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.