Finding the Fourth Proportional to 153,776,693.34, 212,212,399.23 and 83,212,304.18
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Solution
The fourth proportional to 153,776,693.34, 212,212,399.23 and 83,212,304.18 is: 114,833,284.10
Step by Step Solution
- Step 1: Write the proportion equation
153,776,693.34 : 212,212,399.23 = 83,212,304.18 : x - Step 2: Convert to fraction form
153,776,693.34/212,212,399.23 = 83,212,304.18/x - Step 3: Cross multiply
153,776,693.34x = 212,212,399.23 × 83,212,304.18 - Step 4: Simplify right side
153,776,693.34x = 17,658,682,714,433,294 - Step 5: Solve for x
x = 17,658,682,714,433,294/153,776,693.34 - Step 6: Final answer
x = 114,833,284.10
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1.5x scale
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.