Finding the Fourth Proportional to 1,248,159,750.80, 1,872,239,626.20 and 635,939,718.80
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Solution
The fourth proportional to 1,248,159,750.80, 1,872,239,626.20 and 635,939,718.80 is: 953,909,578.20
Step by Step Solution
- Step 1: Write the proportion equation
1,248,159,750.80 : 1,872,239,626.20 = 635,939,718.80 : x - Step 2: Convert to fraction form
1,248,159,750.80/1,872,239,626.20 = 635,939,718.80/x - Step 3: Cross multiply
1,248,159,750.80x = 1,872,239,626.20 × 635,939,718.80 - Step 4: Simplify right side
1,248,159,750.80x = 1,190,631,541,411,845,120 - Step 5: Solve for x
x = 1,190,631,541,411,845,120/1,248,159,750.80 - Step 6: Final answer
x = 953,909,578.20
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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.