Finding the Fourth Proportional to 465,489,221.78, 698,305,577.21 and 158,709,590.12
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Solution
The fourth proportional to 465,489,221.78, 698,305,577.21 and 158,709,590.12 is: 238,088,846.64
Step by Step Solution
- Step 1: Write the proportion equation
465,489,221.78 : 698,305,577.21 = 158,709,590.12 : x - Step 2: Convert to fraction form
465,489,221.78/698,305,577.21 = 158,709,590.12/x - Step 3: Cross multiply
465,489,221.78x = 698,305,577.21 × 158,709,590.12 - Step 4: Simplify right side
465,489,221.78x = 110,827,791,937,509,120 - Step 5: Solve for x
x = 110,827,791,937,509,120/465,489,221.78 - Step 6: Final answer
x = 238,088,846.64
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.