Finding the Fourth Proportional to 877,438,907.76, 1,210,159,652.58 and 771,365,522.46
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Solution
The fourth proportional to 877,438,907.76, 1,210,159,652.58 and 771,365,522.46 is: 1,063,863,733.89
Step by Step Solution
- Step 1: Write the proportion equation
877,438,907.76 : 1,210,159,652.58 = 771,365,522.46 : x - Step 2: Convert to fraction form
877,438,907.76/1,210,159,652.58 = 771,365,522.46/x - Step 3: Cross multiply
877,438,907.76x = 1,210,159,652.58 × 771,365,522.46 - Step 4: Simplify right side
877,438,907.76x = 933,475,432,672,383,744 - Step 5: Solve for x
x = 933,475,432,672,383,744/877,438,907.76 - Step 6: Final answer
x = 1,063,863,733.89
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1.5x scale
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.