Finding the Fourth Proportional to 76,784,998,539.40, 115,177,497,809.10 and 39,592,631,595.40
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Solution
The fourth proportional to 76,784,998,539.40, 115,177,497,809.10 and 39,592,631,595.40 is: 59,388,947,393.10
Step by Step Solution
- Step 1: Write the proportion equation
76,784,998,539.40 : 115,177,497,809.10 = 39,592,631,595.40 : x - Step 2: Convert to fraction form
76,784,998,539.40/115,177,497,809.10 = 39,592,631,595.40/x - Step 3: Cross multiply
76,784,998,539.40x = 115,177,497,809.10 × 39,592,631,595.40 - Step 4: Simplify right side
76,784,998,539.40x = 4,560,180,238,835,687,358,464 - Step 5: Solve for x
x = 4,560,180,238,835,687,358,464/76,784,998,539.40 - Step 6: Final answer
x = 59,388,947,393.10
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1.5x scale
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.