Finding the Fourth Proportional to 21,031,881.21, 29,024,083.62 and 11,374,089.21
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Solution
The fourth proportional to 21,031,881.21, 29,024,083.62 and 11,374,089.21 is: 15,696,290.46
Step by Step Solution
- Step 1: Write the proportion equation
21,031,881.21 : 29,024,083.62 = 11,374,089.21 : x - Step 2: Convert to fraction form
21,031,881.21/29,024,083.62 = 11,374,089.21/x - Step 3: Cross multiply
21,031,881.21x = 29,024,083.62 × 11,374,089.21 - Step 4: Simplify right side
21,031,881.21x = 330,122,516,332,379.75 - Step 5: Solve for x
x = 330,122,516,332,379.75/21,031,881.21 - Step 6: Final answer
x = 15,696,290.46
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.