Finding the Fourth Proportional to 455,862,621.08, 629,020,848.48 and 257,551,758.26
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Solution
The fourth proportional to 455,862,621.08, 629,020,848.48 and 257,551,758.26 is: 355,382,121.76
Step by Step Solution
- Step 1: Write the proportion equation
455,862,621.08 : 629,020,848.48 = 257,551,758.26 : x - Step 2: Convert to fraction form
455,862,621.08/629,020,848.48 = 257,551,758.26/x - Step 3: Cross multiply
455,862,621.08x = 629,020,848.48 × 257,551,758.26 - Step 4: Simplify right side
455,862,621.08x = 162,005,425,508,221,056 - Step 5: Solve for x
x = 162,005,425,508,221,056/455,862,621.08 - Step 6: Final answer
x = 355,382,121.76
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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.