Finding the Fourth Proportional to 1,238,922,314.66, 1,857,704,214.84 and 491,180,593.08
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Solution
The fourth proportional to 1,238,922,314.66, 1,857,704,214.84 and 491,180,593.08 is: 736,501,592.73
Step by Step Solution
- Step 1: Write the proportion equation
1,238,922,314.66 : 1,857,704,214.84 = 491,180,593.08 : x - Step 2: Convert to fraction form
1,238,922,314.66/1,857,704,214.84 = 491,180,593.08/x - Step 3: Cross multiply
1,238,922,314.66x = 1,857,704,214.84 × 491,180,593.08 - Step 4: Simplify right side
1,238,922,314.66x = 912,468,258,012,326,912 - Step 5: Solve for x
x = 912,468,258,012,326,912/1,238,922,314.66 - Step 6: Final answer
x = 736,501,592.73
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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.