Finding the Fourth Proportional to 257,782,719.82, 355,747,852.08 and 158,720,616.48
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Solution
The fourth proportional to 257,782,719.82, 355,747,852.08 and 158,720,616.48 is: 219,039,190.96
Step by Step Solution
- Step 1: Write the proportion equation
257,782,719.82 : 355,747,852.08 = 158,720,616.48 : x - Step 2: Convert to fraction form
257,782,719.82/355,747,852.08 = 158,720,616.48/x - Step 3: Cross multiply
257,782,719.82x = 355,747,852.08 × 158,720,616.48 - Step 4: Simplify right side
257,782,719.82x = 56,464,518,393,573,440 - Step 5: Solve for x
x = 56,464,518,393,573,440/257,782,719.82 - Step 6: Final answer
x = 219,039,190.96
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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.