Finding the Fourth Proportional to 873,466,410.06, 1,205,539,343.37 and 516,219,602.85
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Solution
The fourth proportional to 873,466,410.06, 1,205,539,343.37 and 516,219,602.85 is: 712,475,069.32
Step by Step Solution
- Step 1: Write the proportion equation
873,466,410.06 : 1,205,539,343.37 = 516,219,602.85 : x - Step 2: Convert to fraction form
873,466,410.06/1,205,539,343.37 = 516,219,602.85/x - Step 3: Cross multiply
873,466,410.06x = 1,205,539,343.37 × 516,219,602.85 - Step 4: Simplify right side
873,466,410.06x = 622,323,041,054,511,104 - Step 5: Solve for x
x = 622,323,041,054,511,104/873,466,410.06 - Step 6: Final answer
x = 712,475,069.32
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Double scale
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Similar ratio
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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.