Finding the Fourth Proportional to 42,413,043.12, 63,617,787.72 and 13,658,542.08
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Solution
The fourth proportional to 42,413,043.12, 63,617,787.72 and 13,658,542.08 is: 20,487,240.87
Step by Step Solution
- Step 1: Write the proportion equation
42,413,043.12 : 63,617,787.72 = 13,658,542.08 : x - Step 2: Convert to fraction form
42,413,043.12/63,617,787.72 = 13,658,542.08/x - Step 3: Cross multiply
42,413,043.12x = 63,617,787.72 × 13,658,542.08 - Step 4: Simplify right side
42,413,043.12x = 868,926,230,610,127.25 - Step 5: Solve for x
x = 868,926,230,610,127.25/42,413,043.12 - Step 6: Final answer
x = 20,487,240.87
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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.