Finding the Fourth Proportional to 1,246,335,028.20, 1,869,502,542.30 and 519,229,261.80
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Solution
The fourth proportional to 1,246,335,028.20, 1,869,502,542.30 and 519,229,261.80 is: 778,843,892.70
Step by Step Solution
- Step 1: Write the proportion equation
1,246,335,028.20 : 1,869,502,542.30 = 519,229,261.80 : x - Step 2: Convert to fraction form
1,246,335,028.20/1,869,502,542.30 = 519,229,261.80/x - Step 3: Cross multiply
1,246,335,028.20x = 1,869,502,542.30 × 519,229,261.80 - Step 4: Simplify right side
1,246,335,028.20x = 970,700,424,971,652,224 - Step 5: Solve for x
x = 970,700,424,971,652,224/1,246,335,028.20 - Step 6: Final answer
x = 778,843,892.70
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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.