Finding the Fourth Proportional to 427,707,642.87, 590,169,128.19 and 249,120,922.55
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Solution
The fourth proportional to 427,707,642.87, 590,169,128.19 and 249,120,922.55 is: 343,747,604.52
Step by Step Solution
- Step 1: Write the proportion equation
427,707,642.87 : 590,169,128.19 = 249,120,922.55 : x - Step 2: Convert to fraction form
427,707,642.87/590,169,128.19 = 249,120,922.55/x - Step 3: Cross multiply
427,707,642.87x = 590,169,128.19 × 249,120,922.55 - Step 4: Simplify right side
427,707,642.87x = 147,023,477,671,336,960 - Step 5: Solve for x
x = 147,023,477,671,336,960/427,707,642.87 - Step 6: Final answer
x = 343,747,604.52
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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.