Finding the Fourth Proportional to 495,126,816.99, 683,291,389.26 and 272,116,403.40
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Solution
The fourth proportional to 495,126,816.99, 683,291,389.26 and 272,116,403.40 is: 375,529,639.96
Step by Step Solution
- Step 1: Write the proportion equation
495,126,816.99 : 683,291,389.26 = 272,116,403.40 : x - Step 2: Convert to fraction form
495,126,816.99/683,291,389.26 = 272,116,403.40/x - Step 3: Cross multiply
495,126,816.99x = 683,291,389.26 × 272,116,403.40 - Step 4: Simplify right side
495,126,816.99x = 185,934,795,319,620,576 - Step 5: Solve for x
x = 185,934,795,319,620,576/495,126,816.99 - Step 6: Final answer
x = 375,529,639.96
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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.