Finding the Fourth Proportional to 679,087,201.41, 1,018,629,530.55 and 212,784,322.95
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Solution
The fourth proportional to 679,087,201.41, 1,018,629,530.55 and 212,784,322.95 is: 319,176,085.99
Step by Step Solution
- Step 1: Write the proportion equation
679,087,201.41 : 1,018,629,530.55 = 212,784,322.95 : x - Step 2: Convert to fraction form
679,087,201.41/1,018,629,530.55 = 212,784,322.95/x - Step 3: Cross multiply
679,087,201.41x = 1,018,629,530.55 × 212,784,322.95 - Step 4: Simplify right side
679,087,201.41x = 216,748,394,994,958,080 - Step 5: Solve for x
x = 216,748,394,994,958,080/679,087,201.41 - Step 6: Final answer
x = 319,176,085.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.