Finding the Fourth Proportional to 1,070,134,901.80, 1,605,202,352.70 and 906,876,226.60
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Solution
The fourth proportional to 1,070,134,901.80, 1,605,202,352.70 and 906,876,226.60 is: 1,360,314,339.90
Step by Step Solution
- Step 1: Write the proportion equation
1,070,134,901.80 : 1,605,202,352.70 = 906,876,226.60 : x - Step 2: Convert to fraction form
1,070,134,901.80/1,605,202,352.70 = 906,876,226.60/x - Step 3: Cross multiply
1,070,134,901.80x = 1,605,202,352.70 × 906,876,226.60 - Step 4: Simplify right side
1,070,134,901.80x = 1,455,719,852,546,018,304 - Step 5: Solve for x
x = 1,455,719,852,546,018,304/1,070,134,901.80 - Step 6: Final answer
x = 1,360,314,339.90
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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.