Finding the Fourth Proportional to 6,899,642,155.19, 9,529,360,250.95 and 4,637,654,579.09
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Solution
The fourth proportional to 6,899,642,155.19, 9,529,360,250.95 and 4,637,654,579.09 is: 6,405,242,505.28
Step by Step Solution
- Step 1: Write the proportion equation
6,899,642,155.19 : 9,529,360,250.95 = 4,637,654,579.09 : x - Step 2: Convert to fraction form
6,899,642,155.19/9,529,360,250.95 = 4,637,654,579.09/x - Step 3: Cross multiply
6,899,642,155.19x = 9,529,360,250.95 × 4,637,654,579.09 - Step 4: Simplify right side
6,899,642,155.19x = 44,193,881,203,647,275,008 - Step 5: Solve for x
x = 44,193,881,203,647,275,008/6,899,642,155.19 - Step 6: Final answer
x = 6,405,242,505.28
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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.