Finding the Fourth Proportional to 247,128,224.75, 370,680,357.12 and 91,712,331.10
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Solution
The fourth proportional to 247,128,224.75, 370,680,357.12 and 91,712,331.10 is: 137,564,050.72
Step by Step Solution
- Step 1: Write the proportion equation
247,128,224.75 : 370,680,357.12 = 91,712,331.10 : x - Step 2: Convert to fraction form
247,128,224.75/370,680,357.12 = 91,712,331.10/x - Step 3: Cross multiply
247,128,224.75x = 370,680,357.12 × 91,712,331.10 - Step 4: Simplify right side
247,128,224.75x = 33,995,959,644,455,680 - Step 5: Solve for x
x = 33,995,959,644,455,680/247,128,224.75 - Step 6: Final answer
x = 137,564,050.72
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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.