Finding the Fourth Proportional to 654,740,861.86, 903,407,509.56 and 376,228,576.99
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Solution
The fourth proportional to 654,740,861.86, 903,407,509.56 and 376,228,576.99 is: 519,117,931.33
Step by Step Solution
- Step 1: Write the proportion equation
654,740,861.86 : 903,407,509.56 = 376,228,576.99 : x - Step 2: Convert to fraction form
654,740,861.86/903,407,509.56 = 376,228,576.99/x - Step 3: Cross multiply
654,740,861.86x = 903,407,509.56 × 376,228,576.99 - Step 4: Simplify right side
654,740,861.86x = 339,887,721,763,838,592 - Step 5: Solve for x
x = 339,887,721,763,838,592/654,740,861.86 - Step 6: Final answer
x = 519,117,931.33
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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.