Finding the Fourth Proportional to 545,542,801.80, 818,314,202.70 and 239,432,785.80
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Solution
The fourth proportional to 545,542,801.80, 818,314,202.70 and 239,432,785.80 is: 359,149,178.70
Step by Step Solution
- Step 1: Write the proportion equation
545,542,801.80 : 818,314,202.70 = 239,432,785.80 : x - Step 2: Convert to fraction form
545,542,801.80/818,314,202.70 = 239,432,785.80/x - Step 3: Cross multiply
545,542,801.80x = 818,314,202.70 × 239,432,785.80 - Step 4: Simplify right side
545,542,801.80x = 195,931,249,212,166,912 - Step 5: Solve for x
x = 195,931,249,212,166,912/545,542,801.80 - Step 6: Final answer
x = 359,149,178.70
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1.5x scale
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.