Finding the Fourth Proportional to 509,398,271.36, 702,965,388.72 and 286,380,947.08
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Solution
The fourth proportional to 509,398,271.36, 702,965,388.72 and 286,380,947.08 is: 395,203,331.28
Step by Step Solution
- Step 1: Write the proportion equation
509,398,271.36 : 702,965,388.72 = 286,380,947.08 : x - Step 2: Convert to fraction form
509,398,271.36/702,965,388.72 = 286,380,947.08/x - Step 3: Cross multiply
509,398,271.36x = 702,965,388.72 × 286,380,947.08 - Step 4: Simplify right side
509,398,271.36x = 201,315,893,787,230,432 - Step 5: Solve for x
x = 201,315,893,787,230,432/509,398,271.36 - Step 6: Final answer
x = 395,203,331.28
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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.