Finding the Fourth Proportional to 1,569,888,821.80, 2,354,833,232.70 and 479,230,172.20
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Solution
The fourth proportional to 1,569,888,821.80, 2,354,833,232.70 and 479,230,172.20 is: 718,845,258.30
Step by Step Solution
- Step 1: Write the proportion equation
1,569,888,821.80 : 2,354,833,232.70 = 479,230,172.20 : x - Step 2: Convert to fraction form
1,569,888,821.80/2,354,833,232.70 = 479,230,172.20/x - Step 3: Cross multiply
1,569,888,821.80x = 2,354,833,232.70 × 479,230,172.20 - Step 4: Simplify right side
1,569,888,821.80x = 1,128,507,135,609,103,488 - Step 5: Solve for x
x = 1,128,507,135,609,103,488/1,569,888,821.80 - Step 6: Final answer
x = 718,845,258.30
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.