Finding the Fourth Proportional to 982,915,787.74, 1,356,415,724.55 and 536,879,435.26
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Solution
The fourth proportional to 982,915,787.74, 1,356,415,724.55 and 536,879,435.26 is: 740,889,216.82
Step by Step Solution
- Step 1: Write the proportion equation
982,915,787.74 : 1,356,415,724.55 = 536,879,435.26 : x - Step 2: Convert to fraction form
982,915,787.74/1,356,415,724.55 = 536,879,435.26/x - Step 3: Cross multiply
982,915,787.74x = 1,356,415,724.55 × 536,879,435.26 - Step 4: Simplify right side
982,915,787.74x = 728,231,708,174,187,648 - Step 5: Solve for x
x = 728,231,708,174,187,648/982,915,787.74 - Step 6: Final answer
x = 740,889,216.82
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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.