Finding the Fourth Proportional to 198,346,208.76, 273,794,756.18 and 148,929,281.64
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Solution
The fourth proportional to 198,346,208.76, 273,794,756.18 and 148,929,281.64 is: 205,580,215.57
Step by Step Solution
- Step 1: Write the proportion equation
198,346,208.76 : 273,794,756.18 = 148,929,281.64 : x - Step 2: Convert to fraction form
198,346,208.76/273,794,756.18 = 148,929,281.64/x - Step 3: Cross multiply
198,346,208.76x = 273,794,756.18 × 148,929,281.64 - Step 4: Simplify right side
198,346,208.76x = 40,776,056,353,941,704 - Step 5: Solve for x
x = 40,776,056,353,941,704/198,346,208.76 - Step 6: Final answer
x = 205,580,215.57
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.