Finding the Fourth Proportional to 1,697,356,979.20, 2,546,035,468.80 and 1,289,210,291.20
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Solution
The fourth proportional to 1,697,356,979.20, 2,546,035,468.80 and 1,289,210,291.20 is: 1,933,815,436.80
Step by Step Solution
- Step 1: Write the proportion equation
1,697,356,979.20 : 2,546,035,468.80 = 1,289,210,291.20 : x - Step 2: Convert to fraction form
1,697,356,979.20/2,546,035,468.80 = 1,289,210,291.20/x - Step 3: Cross multiply
1,697,356,979.20x = 2,546,035,468.80 × 1,289,210,291.20 - Step 4: Simplify right side
1,697,356,979.20x = 3,282,375,128,137,177,088 - Step 5: Solve for x
x = 3,282,375,128,137,177,088/1,697,356,979.20 - Step 6: Final answer
x = 1,933,815,436.80
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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.