Finding the Fourth Proportional to 669,300,311.21, 922,660,973.82 and 467,731,368.95
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Solution
The fourth proportional to 669,300,311.21, 922,660,973.82 and 467,731,368.95 is: 644,789,002.98
Step by Step Solution
- Step 1: Write the proportion equation
669,300,311.21 : 922,660,973.82 = 467,731,368.95 : x - Step 2: Convert to fraction form
669,300,311.21/922,660,973.82 = 467,731,368.95/x - Step 3: Cross multiply
669,300,311.21x = 922,660,973.82 × 467,731,368.95 - Step 4: Simplify right side
669,300,311.21x = 431,557,480,356,955,392 - Step 5: Solve for x
x = 431,557,480,356,955,392/669,300,311.21 - Step 6: Final answer
x = 644,789,002.98
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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.