Finding the Fourth Proportional to 19,520,864.01, 29,249,278.34 and 13,830,931.53
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Solution
The fourth proportional to 19,520,864.01, 29,249,278.34 and 13,830,931.53 is: 20,723,712.11
Step by Step Solution
- Step 1: Write the proportion equation
19,520,864.01 : 29,249,278.34 = 13,830,931.53 : x - Step 2: Convert to fraction form
19,520,864.01/29,249,278.34 = 13,830,931.53/x - Step 3: Cross multiply
19,520,864.01x = 29,249,278.34 × 13,830,931.53 - Step 4: Simplify right side
19,520,864.01x = 404,544,765,953,297.38 - Step 5: Solve for x
x = 404,544,765,953,297.38/19,520,864.01 - Step 6: Final answer
x = 20,723,712.11
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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.