Finding the Fourth Proportional to 463,320,973.62, 639,395,429.67 and 272,595,304.53
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Solution
The fourth proportional to 463,320,973.62, 639,395,429.67 and 272,595,304.53 is: 376,188,866.44
Step by Step Solution
- Step 1: Write the proportion equation
463,320,973.62 : 639,395,429.67 = 272,595,304.53 : x - Step 2: Convert to fraction form
463,320,973.62/639,395,429.67 = 272,595,304.53/x - Step 3: Cross multiply
463,320,973.62x = 639,395,429.67 × 272,595,304.53 - Step 4: Simplify right side
463,320,973.62x = 174,296,191,865,983,808 - Step 5: Solve for x
x = 174,296,191,865,983,808/463,320,973.62 - Step 6: Final answer
x = 376,188,866.44
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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.