Finding the Fourth Proportional to 418,246,541.24, 627,236,709.98 and 138,075,289.70
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Solution
The fourth proportional to 418,246,541.24, 627,236,709.98 and 138,075,289.70 is: 207,068,993.76
Step by Step Solution
- Step 1: Write the proportion equation
418,246,541.24 : 627,236,709.98 = 138,075,289.70 : x - Step 2: Convert to fraction form
418,246,541.24/627,236,709.98 = 138,075,289.70/x - Step 3: Cross multiply
418,246,541.24x = 627,236,709.98 × 138,075,289.70 - Step 4: Simplify right side
418,246,541.24x = 86,605,890,437,136,816 - Step 5: Solve for x
x = 86,605,890,437,136,816/418,246,541.24 - Step 6: Final answer
x = 207,068,993.76
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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.