Finding the Fourth Proportional to 1,285,743,208.98, 1,928,408,207.42 and 352,848,134.64
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Solution
The fourth proportional to 1,285,743,208.98, 1,928,408,207.42 and 352,848,134.64 is: 529,215,502.80
Step by Step Solution
- Step 1: Write the proportion equation
1,285,743,208.98 : 1,928,408,207.42 = 352,848,134.64 : x - Step 2: Convert to fraction form
1,285,743,208.98/1,928,408,207.42 = 352,848,134.64/x - Step 3: Cross multiply
1,285,743,208.98x = 1,928,408,207.42 × 352,848,134.64 - Step 4: Simplify right side
1,285,743,208.98x = 680,435,238,812,613,248 - Step 5: Solve for x
x = 680,435,238,812,613,248/1,285,743,208.98 - Step 6: Final answer
x = 529,215,502.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.