Finding the Fourth Proportional to 7,179,018,310.28, 9,908,698,263.19 and 4,209,751,155.08
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Solution
The fourth proportional to 7,179,018,310.28, 9,908,698,263.19 and 4,209,751,155.08 is: 5,810,425,904.48
Step by Step Solution
- Step 1: Write the proportion equation
7,179,018,310.28 : 9,908,698,263.19 = 4,209,751,155.08 : x - Step 2: Convert to fraction form
7,179,018,310.28/9,908,698,263.19 = 4,209,751,155.08/x - Step 3: Cross multiply
7,179,018,310.28x = 9,908,698,263.19 × 4,209,751,155.08 - Step 4: Simplify right side
7,179,018,310.28x = 41,713,153,958,817,538,048 - Step 5: Solve for x
x = 41,713,153,958,817,538,048/7,179,018,310.28 - Step 6: Final answer
x = 5,810,425,904.48
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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.