Finding the Fourth Proportional to 418,246,682.16, 627,236,920.80 and 138,075,430.44
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Solution
The fourth proportional to 418,246,682.16, 627,236,920.80 and 138,075,430.44 is: 207,069,204.66
Step by Step Solution
- Step 1: Write the proportion equation
418,246,682.16 : 627,236,920.80 = 138,075,430.44 : x - Step 2: Convert to fraction form
418,246,682.16/627,236,920.80 = 138,075,430.44/x - Step 3: Cross multiply
418,246,682.16x = 627,236,920.80 × 138,075,430.44 - Step 4: Simplify right side
418,246,682.16x = 86,606,007,827,320,176 - Step 5: Solve for x
x = 86,606,007,827,320,176/418,246,682.16 - Step 6: Final answer
x = 207,069,204.66
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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.