Finding the Fourth Proportional to 918,961,089.56, 1,268,174,397.06 and 501,275,232.44
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Solution
The fourth proportional to 918,961,089.56, 1,268,174,397.06 and 501,275,232.44 is: 691,764,235.59
Step by Step Solution
- Step 1: Write the proportion equation
918,961,089.56 : 1,268,174,397.06 = 501,275,232.44 : x - Step 2: Convert to fraction form
918,961,089.56/1,268,174,397.06 = 501,275,232.44/x - Step 3: Cross multiply
918,961,089.56x = 1,268,174,397.06 × 501,275,232.44 - Step 4: Simplify right side
918,961,089.56x = 635,704,415,660,708,352 - Step 5: Solve for x
x = 635,704,415,660,708,352/918,961,089.56 - Step 6: Final answer
x = 691,764,235.59
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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.