Finding the Fourth Proportional to 139,995,398.04, 193,266,288.53 and 102,276,260.07
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Solution
The fourth proportional to 139,995,398.04, 193,266,288.53 and 102,276,260.07 is: 141,194,306.85
Step by Step Solution
- Step 1: Write the proportion equation
139,995,398.04 : 193,266,288.53 = 102,276,260.07 : x - Step 2: Convert to fraction form
139,995,398.04/193,266,288.53 = 102,276,260.07/x - Step 3: Cross multiply
139,995,398.04x = 193,266,288.53 × 102,276,260.07 - Step 4: Simplify right side
139,995,398.04x = 19,766,553,188,457,936 - Step 5: Solve for x
x = 19,766,553,188,457,936/139,995,398.04 - Step 6: Final answer
x = 141,194,306.85
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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.