Finding the Fourth Proportional to 514,328,421.04, 709,772,681.64 and 279,379,268.08
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Solution
The fourth proportional to 514,328,421.04, 709,772,681.64 and 279,379,268.08 is: 385,543,096.96
Step by Step Solution
- Step 1: Write the proportion equation
514,328,421.04 : 709,772,681.64 = 279,379,268.08 : x - Step 2: Convert to fraction form
514,328,421.04/709,772,681.64 = 279,379,268.08/x - Step 3: Cross multiply
514,328,421.04x = 709,772,681.64 × 279,379,268.08 - Step 4: Simplify right side
514,328,421.04x = 198,295,772,299,762,048 - Step 5: Solve for x
x = 198,295,772,299,762,048/514,328,421.04 - Step 6: Final answer
x = 385,543,096.96
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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.