Finding the Fourth Proportional to 492,034,324.32, 679,021,539.12 and 272,031,922.08
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Solution
The fourth proportional to 492,034,324.32, 679,021,539.12 and 272,031,922.08 is: 375,411,887.53
Step by Step Solution
- Step 1: Write the proportion equation
492,034,324.32 : 679,021,539.12 = 272,031,922.08 : x - Step 2: Convert to fraction form
492,034,324.32/679,021,539.12 = 272,031,922.08/x - Step 3: Cross multiply
492,034,324.32x = 679,021,539.12 × 272,031,922.08 - Step 4: Simplify right side
492,034,324.32x = 184,715,534,420,533,504 - Step 5: Solve for x
x = 184,715,534,420,533,504/492,034,324.32 - Step 6: Final answer
x = 375,411,887.53
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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.