Finding the Fourth Proportional to 514,328,420.04, 709,772,680.26 and 279,379,267.08
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Solution
The fourth proportional to 514,328,420.04, 709,772,680.26 and 279,379,267.08 is: 385,543,095.58
Step by Step Solution
- Step 1: Write the proportion equation
514,328,420.04 : 709,772,680.26 = 279,379,267.08 : x - Step 2: Convert to fraction form
514,328,420.04/709,772,680.26 = 279,379,267.08/x - Step 3: Cross multiply
514,328,420.04x = 709,772,680.26 × 279,379,267.08 - Step 4: Simplify right side
514,328,420.04x = 198,295,771,204,445,984 - Step 5: Solve for x
x = 198,295,771,204,445,984/514,328,420.04 - Step 6: Final answer
x = 385,543,095.58
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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.