Finding the Fourth Proportional to 502,984,223.58, 694,118,261.92 and 279,961,119.02
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Solution
The fourth proportional to 502,984,223.58, 694,118,261.92 and 279,961,119.02 is: 386,346,362.82
Step by Step Solution
- Step 1: Write the proportion equation
502,984,223.58 : 694,118,261.92 = 279,961,119.02 : x - Step 2: Convert to fraction form
502,984,223.58/694,118,261.92 = 279,961,119.02/x - Step 3: Cross multiply
502,984,223.58x = 694,118,261.92 × 279,961,119.02 - Step 4: Simplify right side
502,984,223.58x = 194,326,125,337,940,832 - Step 5: Solve for x
x = 194,326,125,337,940,832/502,984,223.58 - Step 6: Final answer
x = 386,346,362.82
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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.