Finding the Fourth Proportional to 1,303,345,881.40, 1,957,286,303.70 and 691,125,849.40
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Solution
The fourth proportional to 1,303,345,881.40, 1,957,286,303.70 and 691,125,849.40 is: 1,037,891,152.66
Step by Step Solution
- Step 1: Write the proportion equation
1,303,345,881.40 : 1,957,286,303.70 = 691,125,849.40 : x - Step 2: Convert to fraction form
1,303,345,881.40/1,957,286,303.70 = 691,125,849.40/x - Step 3: Cross multiply
1,303,345,881.40x = 1,957,286,303.70 × 691,125,849.40 - Step 4: Simplify right side
1,303,345,881.40x = 1,352,731,159,163,648,768 - Step 5: Solve for x
x = 1,352,731,159,163,648,768/1,303,345,881.40 - Step 6: Final answer
x = 1,037,891,152.66
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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.