Finding the Fourth Proportional to 472,435,638.80, 708,653,458.20 and 424,818,525.20
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Solution
The fourth proportional to 472,435,638.80, 708,653,458.20 and 424,818,525.20 is: 637,227,787.80
Step by Step Solution
- Step 1: Write the proportion equation
472,435,638.80 : 708,653,458.20 = 424,818,525.20 : x - Step 2: Convert to fraction form
472,435,638.80/708,653,458.20 = 424,818,525.20/x - Step 3: Cross multiply
472,435,638.80x = 708,653,458.20 × 424,818,525.20 - Step 4: Simplify right side
472,435,638.80x = 301,049,116,990,403,840 - Step 5: Solve for x
x = 301,049,116,990,403,840/472,435,638.80 - Step 6: Final answer
x = 637,227,787.80
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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.