Finding the Fourth Proportional to 438,354,375.48, 604,921,624.14 and 242,779,888.44
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Solution
The fourth proportional to 438,354,375.48, 604,921,624.14 and 242,779,888.44 is: 335,032,139.84
Step by Step Solution
- Step 1: Write the proportion equation
438,354,375.48 : 604,921,624.14 = 242,779,888.44 : x - Step 2: Convert to fraction form
438,354,375.48/604,921,624.14 = 242,779,888.44/x - Step 3: Cross multiply
438,354,375.48x = 604,921,624.14 × 242,779,888.44 - Step 4: Simplify right side
438,354,375.48x = 146,862,804,423,652,800 - Step 5: Solve for x
x = 146,862,804,423,652,800/438,354,375.48 - Step 6: Final answer
x = 335,032,139.84
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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.