Finding the Fourth Proportional to 7,387,801.60, 11,089,996.80 and 5,712,332.80
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Solution
The fourth proportional to 7,387,801.60, 11,089,996.80 and 5,712,332.80 is: 8,574,912.53
Step by Step Solution
- Step 1: Write the proportion equation
7,387,801.60 : 11,089,996.80 = 5,712,332.80 : x - Step 2: Convert to fraction form
7,387,801.60/11,089,996.80 = 5,712,332.80/x - Step 3: Cross multiply
7,387,801.60x = 11,089,996.80 × 5,712,332.80 - Step 4: Simplify right side
7,387,801.60x = 63,349,752,472,535.04 - Step 5: Solve for x
x = 63,349,752,472,535.04/7,387,801.60 - Step 6: Final answer
x = 8,574,912.53
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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.