Finding the Fourth Proportional to 221,671,208.40, 332,506,812.60 and 68,303,605.20
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Solution
The fourth proportional to 221,671,208.40, 332,506,812.60 and 68,303,605.20 is: 102,455,407.80
Step by Step Solution
- Step 1: Write the proportion equation
221,671,208.40 : 332,506,812.60 = 68,303,605.20 : x - Step 2: Convert to fraction form
221,671,208.40/332,506,812.60 = 68,303,605.20/x - Step 3: Cross multiply
221,671,208.40x = 332,506,812.60 × 68,303,605.20 - Step 4: Simplify right side
221,671,208.40x = 22,711,414,054,140,788 - Step 5: Solve for x
x = 22,711,414,054,140,788/221,671,208.40 - Step 6: Final answer
x = 102,455,407.80
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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.