Finding the Fourth Proportional to 1,543,346,129.40, 2,317,706,579.70 and 817,752,017.40
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Solution
The fourth proportional to 1,543,346,129.40, 2,317,706,579.70 and 817,752,017.40 is: 1,228,051,954.90
Step by Step Solution
- Step 1: Write the proportion equation
1,543,346,129.40 : 2,317,706,579.70 = 817,752,017.40 : x - Step 2: Convert to fraction form
1,543,346,129.40/2,317,706,579.70 = 817,752,017.40/x - Step 3: Cross multiply
1,543,346,129.40x = 2,317,706,579.70 × 817,752,017.40 - Step 4: Simplify right side
1,543,346,129.40x = 1,895,309,231,290,928,640 - Step 5: Solve for x
x = 1,895,309,231,290,928,640/1,543,346,129.40 - Step 6: Final answer
x = 1,228,051,954.90
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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.