Finding the Fourth Proportional to 318,503,220.64, 439,506,422.80 and 177,363,775.96
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Solution
The fourth proportional to 318,503,220.64, 439,506,422.80 and 177,363,775.96 is: 244,746,406.49
Step by Step Solution
- Step 1: Write the proportion equation
318,503,220.64 : 439,506,422.80 = 177,363,775.96 : x - Step 2: Convert to fraction form
318,503,220.64/439,506,422.80 = 177,363,775.96/x - Step 3: Cross multiply
318,503,220.64x = 439,506,422.80 × 177,363,775.96 - Step 4: Simplify right side
318,503,220.64x = 77,952,518,706,480,240 - Step 5: Solve for x
x = 77,952,518,706,480,240/318,503,220.64 - Step 6: Final answer
x = 244,746,406.49
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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.