Finding the Fourth Proportional to 256,648,202.55, 384,972,303.83 and 247,578,276.15
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Solution
The fourth proportional to 256,648,202.55, 384,972,303.83 and 247,578,276.15 is: 371,367,414.23
Step by Step Solution
- Step 1: Write the proportion equation
256,648,202.55 : 384,972,303.83 = 247,578,276.15 : x - Step 2: Convert to fraction form
256,648,202.55/384,972,303.83 = 247,578,276.15/x - Step 3: Cross multiply
256,648,202.55x = 384,972,303.83 × 247,578,276.15 - Step 4: Simplify right side
256,648,202.55x = 95,310,779,346,487,552 - Step 5: Solve for x
x = 95,310,779,346,487,552/256,648,202.55 - Step 6: Final answer
x = 371,367,414.23
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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.