Finding the Fourth Proportional to 704,958,525.46, 972,784,291.98 and 387,402,073.84
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Solution
The fourth proportional to 704,958,525.46, 972,784,291.98 and 387,402,073.84 is: 534,582,728.63
Step by Step Solution
- Step 1: Write the proportion equation
704,958,525.46 : 972,784,291.98 = 387,402,073.84 : x - Step 2: Convert to fraction form
704,958,525.46/972,784,291.98 = 387,402,073.84/x - Step 3: Cross multiply
704,958,525.46x = 972,784,291.98 × 387,402,073.84 - Step 4: Simplify right side
704,958,525.46x = 376,858,652,112,028,032 - Step 5: Solve for x
x = 376,858,652,112,028,032/704,958,525.46 - Step 6: Final answer
x = 534,582,728.63
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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.