Finding the Fourth Proportional to 38,670,257.68, 53,363,889.96 and 21,266,602.56
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Solution
The fourth proportional to 38,670,257.68, 53,363,889.96 and 21,266,602.56 is: 29,347,325.49
Step by Step Solution
- Step 1: Write the proportion equation
38,670,257.68 : 53,363,889.96 = 21,266,602.56 : x - Step 2: Convert to fraction form
38,670,257.68/53,363,889.96 = 21,266,602.56/x - Step 3: Cross multiply
38,670,257.68x = 53,363,889.96 × 21,266,602.56 - Step 4: Simplify right side
38,670,257.68x = 1,134,868,638,834,894.25 - Step 5: Solve for x
x = 1,134,868,638,834,894.25/38,670,257.68 - Step 6: Final answer
x = 29,347,325.49
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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.