Finding the Fourth Proportional to 81,130,226.13, 121,694,276.19 and 19,719,206.43
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Solution
The fourth proportional to 81,130,226.13, 121,694,276.19 and 19,719,206.43 is: 29,578,551.28
Step by Step Solution
- Step 1: Write the proportion equation
81,130,226.13 : 121,694,276.19 = 19,719,206.43 : x - Step 2: Convert to fraction form
81,130,226.13/121,694,276.19 = 19,719,206.43/x - Step 3: Cross multiply
81,130,226.13x = 121,694,276.19 × 19,719,206.43 - Step 4: Simplify right side
81,130,226.13x = 2,399,714,553,540,044 - Step 5: Solve for x
x = 2,399,714,553,540,044/81,130,226.13 - Step 6: Final answer
x = 29,578,551.28
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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.