Finding the Fourth Proportional to 353,593,296.19, 487,963,804.40 and 202,910,507.65
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Solution
The fourth proportional to 353,593,296.19, 487,963,804.40 and 202,910,507.65 is: 280,019,401.76
Step by Step Solution
- Step 1: Write the proportion equation
353,593,296.19 : 487,963,804.40 = 202,910,507.65 : x - Step 2: Convert to fraction form
353,593,296.19/487,963,804.40 = 202,910,507.65/x - Step 3: Cross multiply
353,593,296.19x = 487,963,804.40 × 202,910,507.65 - Step 4: Simplify right side
353,593,296.19x = 99,012,983,265,629,296 - Step 5: Solve for x
x = 99,012,983,265,629,296/353,593,296.19 - Step 6: Final answer
x = 280,019,401.76
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.