Finding the Fourth Proportional to 957,867,417.20, 1,436,801,125.80 and 728,284,905.20
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Solution
The fourth proportional to 957,867,417.20, 1,436,801,125.80 and 728,284,905.20 is: 1,092,427,357.80
Step by Step Solution
- Step 1: Write the proportion equation
957,867,417.20 : 1,436,801,125.80 = 728,284,905.20 : x - Step 2: Convert to fraction form
957,867,417.20/1,436,801,125.80 = 728,284,905.20/x - Step 3: Cross multiply
957,867,417.20x = 1,436,801,125.80 × 728,284,905.20 - Step 4: Simplify right side
957,867,417.20x = 1,046,400,571,694,506,368 - Step 5: Solve for x
x = 1,046,400,571,694,506,368/957,867,417.20 - Step 6: Final answer
x = 1,092,427,357.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.