Finding the Fourth Proportional to 1,010,079,618.88, 1,393,513,271.04 and 586,621,194.88
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Solution
The fourth proportional to 1,010,079,618.88, 1,393,513,271.04 and 586,621,194.88 is: 809,306,914.88
Step by Step Solution
- Step 1: Write the proportion equation
1,010,079,618.88 : 1,393,513,271.04 = 586,621,194.88 : x - Step 2: Convert to fraction form
1,010,079,618.88/1,393,513,271.04 = 586,621,194.88/x - Step 3: Cross multiply
1,010,079,618.88x = 1,393,513,271.04 × 586,621,194.88 - Step 4: Simplify right side
1,010,079,618.88x = 817,464,420,138,622,080 - Step 5: Solve for x
x = 817,464,420,138,622,080/1,010,079,618.88 - Step 6: Final answer
x = 809,306,914.88
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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.