Finding the Fourth Proportional to 5,319,676,210.80, 7,980,270,143.40 and 1,638,797,746.80
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Solution
The fourth proportional to 5,319,676,210.80, 7,980,270,143.40 and 1,638,797,746.80 is: 2,458,429,462.93
Step by Step Solution
- Step 1: Write the proportion equation
5,319,676,210.80 : 7,980,270,143.40 = 1,638,797,746.80 : x - Step 2: Convert to fraction form
5,319,676,210.80/7,980,270,143.40 = 1,638,797,746.80/x - Step 3: Cross multiply
5,319,676,210.80x = 7,980,270,143.40 × 1,638,797,746.80 - Step 4: Simplify right side
5,319,676,210.80x = 13,078,048,729,859,231,744 - Step 5: Solve for x
x = 13,078,048,729,859,231,744/5,319,676,210.80 - Step 6: Final answer
x = 2,458,429,462.93
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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.