Finding the Fourth Proportional to 354,712,568.01, 489,733,674.35 and 317,478,368.13
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Solution
The fourth proportional to 354,712,568.01, 489,733,674.35 and 317,478,368.13 is: 438,326,300.70
Step by Step Solution
- Step 1: Write the proportion equation
354,712,568.01 : 489,733,674.35 = 317,478,368.13 : x - Step 2: Convert to fraction form
354,712,568.01/489,733,674.35 = 317,478,368.13/x - Step 3: Cross multiply
354,712,568.01x = 489,733,674.35 × 317,478,368.13 - Step 4: Simplify right side
354,712,568.01x = 155,479,847,749,359,456 - Step 5: Solve for x
x = 155,479,847,749,359,456/354,712,568.01 - Step 6: Final answer
x = 438,326,300.70
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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.