Finding the Fourth Proportional to 873,234,809.40, 1,309,852,214.10 and 838,797,432.60
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Solution
The fourth proportional to 873,234,809.40, 1,309,852,214.10 and 838,797,432.60 is: 1,258,196,148.90
Step by Step Solution
- Step 1: Write the proportion equation
873,234,809.40 : 1,309,852,214.10 = 838,797,432.60 : x - Step 2: Convert to fraction form
873,234,809.40/1,309,852,214.10 = 838,797,432.60/x - Step 3: Cross multiply
873,234,809.40x = 1,309,852,214.10 × 838,797,432.60 - Step 4: Simplify right side
873,234,809.40x = 1,098,700,674,272,505,472 - Step 5: Solve for x
x = 1,098,700,674,272,505,472/873,234,809.40 - Step 6: Final answer
x = 1,258,196,148.90
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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.