Finding the Fourth Proportional to 19,755,105,802.21, 29,638,479,753.60 and 7,958,153,683.63
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Solution
The fourth proportional to 19,755,105,802.21, 29,638,479,753.60 and 7,958,153,683.63 is: 11,939,575,479.36
Step by Step Solution
- Step 1: Write the proportion equation
19,755,105,802.21 : 29,638,479,753.60 = 7,958,153,683.63 : x - Step 2: Convert to fraction form
19,755,105,802.21/29,638,479,753.60 = 7,958,153,683.63/x - Step 3: Cross multiply
19,755,105,802.21x = 29,638,479,753.60 × 7,958,153,683.63 - Step 4: Simplify right side
19,755,105,802.21x = 235,867,576,828,305,014,784 - Step 5: Solve for x
x = 235,867,576,828,305,014,784/19,755,105,802.21 - Step 6: Final answer
x = 11,939,575,479.36
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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.