Finding the Fourth Proportional to 1,261,226,621.07, 1,740,507,344.73 and 696,699,807.84
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Solution
The fourth proportional to 1,261,226,621.07, 1,740,507,344.73 and 696,699,807.84 is: 961,453,804.07
Step by Step Solution
- Step 1: Write the proportion equation
1,261,226,621.07 : 1,740,507,344.73 = 696,699,807.84 : x - Step 2: Convert to fraction form
1,261,226,621.07/1,740,507,344.73 = 696,699,807.84/x - Step 3: Cross multiply
1,261,226,621.07x = 1,740,507,344.73 × 696,699,807.84 - Step 4: Simplify right side
1,261,226,621.07x = 1,212,611,132,617,499,648 - Step 5: Solve for x
x = 1,212,611,132,617,499,648/1,261,226,621.07 - Step 6: Final answer
x = 961,453,804.07
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.