Finding the Fourth Proportional to 830,158,116.05, 1,245,239,537.95 and 239,996,399.01
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Solution
The fourth proportional to 830,158,116.05, 1,245,239,537.95 and 239,996,399.01 is: 359,995,281.90
Step by Step Solution
- Step 1: Write the proportion equation
830,158,116.05 : 1,245,239,537.95 = 239,996,399.01 : x - Step 2: Convert to fraction form
830,158,116.05/1,245,239,537.95 = 239,996,399.01/x - Step 3: Cross multiply
830,158,116.05x = 1,245,239,537.95 × 239,996,399.01 - Step 4: Simplify right side
830,158,116.05x = 298,853,005,008,518,528 - Step 5: Solve for x
x = 298,853,005,008,518,528/830,158,116.05 - Step 6: Final answer
x = 359,995,281.90
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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.