Finding the Fourth Proportional to 21,032,473.48, 29,024,648.94 and 11,374,681.48
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Solution
The fourth proportional to 21,032,473.48, 29,024,648.94 and 11,374,681.48 is: 15,696,971.50
Step by Step Solution
- Step 1: Write the proportion equation
21,032,473.48 : 29,024,648.94 = 11,374,681.48 : x - Step 2: Convert to fraction form
21,032,473.48/29,024,648.94 = 11,374,681.48/x - Step 3: Cross multiply
21,032,473.48x = 29,024,648.94 × 11,374,681.48 - Step 4: Simplify right side
21,032,473.48x = 330,146,136,761,319.69 - Step 5: Solve for x
x = 330,146,136,761,319.69/21,032,473.48 - Step 6: Final answer
x = 15,696,971.50
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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.