Finding the Fourth Proportional to 870,901,683.40, 1,306,352,525.10 and 804,388,889.80
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Solution
The fourth proportional to 870,901,683.40, 1,306,352,525.10 and 804,388,889.80 is: 1,206,583,334.70
Step by Step Solution
- Step 1: Write the proportion equation
870,901,683.40 : 1,306,352,525.10 = 804,388,889.80 : x - Step 2: Convert to fraction form
870,901,683.40/1,306,352,525.10 = 804,388,889.80/x - Step 3: Cross multiply
870,901,683.40x = 1,306,352,525.10 × 804,388,889.80 - Step 4: Simplify right side
870,901,683.40x = 1,050,815,457,352,615,552 - Step 5: Solve for x
x = 1,050,815,457,352,615,552/870,901,683.40 - Step 6: Final answer
x = 1,206,583,334.70
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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.