Finding the Fourth Proportional to 651,690,240.87, 899,326,209.74 and 354,332,478.99
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Solution
The fourth proportional to 651,690,240.87, 899,326,209.74 and 354,332,478.99 is: 488,975,383.29
Step by Step Solution
- Step 1: Write the proportion equation
651,690,240.87 : 899,326,209.74 = 354,332,478.99 : x - Step 2: Convert to fraction form
651,690,240.87/899,326,209.74 = 354,332,478.99/x - Step 3: Cross multiply
651,690,240.87x = 899,326,209.74 × 354,332,478.99 - Step 4: Simplify right side
651,690,240.87x = 318,660,485,316,083,264 - Step 5: Solve for x
x = 318,660,485,316,083,264/651,690,240.87 - Step 6: Final answer
x = 488,975,383.29
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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.