Finding the Fourth Proportional to 387,266,473.74, 534,446,682.61 and 217,774,058.14
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Solution
The fourth proportional to 387,266,473.74, 534,446,682.61 and 217,774,058.14 is: 300,538,855.86
Step by Step Solution
- Step 1: Write the proportion equation
387,266,473.74 : 534,446,682.61 = 217,774,058.14 : x - Step 2: Convert to fraction form
387,266,473.74/534,446,682.61 = 217,774,058.14/x - Step 3: Cross multiply
387,266,473.74x = 534,446,682.61 × 217,774,058.14 - Step 4: Simplify right side
387,266,473.74x = 116,388,622,932,544,224 - Step 5: Solve for x
x = 116,388,622,932,544,224/387,266,473.74 - Step 6: Final answer
x = 300,538,855.86
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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.