Finding the Fourth Proportional to 39,872,094, 55,023,511.86 and 21,537,379.68
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Solution
The fourth proportional to 39,872,094, 55,023,511.86 and 21,537,379.68 is: 29,721,595.92
Step by Step Solution
- Step 1: Write the proportion equation
39,872,094 : 55,023,511.86 = 21,537,379.68 : x - Step 2: Convert to fraction form
39,872,094/55,023,511.86 = 21,537,379.68/x - Step 3: Cross multiply
39,872,094x = 55,023,511.86 × 21,537,379.68 - Step 4: Simplify right side
39,872,094x = 1,185,062,266,255,803 - Step 5: Solve for x
x = 1,185,062,266,255,803/39,872,094 - Step 6: Final answer
x = 29,721,595.92
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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.