Finding the Fourth Proportional to 816,156,975.60, 1,226,624,250.60 and 711,050,338.80
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Solution
The fourth proportional to 816,156,975.60, 1,226,624,250.60 and 711,050,338.80 is: 1,068,656,661.70
Step by Step Solution
- Step 1: Write the proportion equation
816,156,975.60 : 1,226,624,250.60 = 711,050,338.80 : x - Step 2: Convert to fraction form
816,156,975.60/1,226,624,250.60 = 711,050,338.80/x - Step 3: Cross multiply
816,156,975.60x = 1,226,624,250.60 × 711,050,338.80 - Step 4: Simplify right side
816,156,975.60x = 872,191,588,969,425,920 - Step 5: Solve for x
x = 872,191,588,969,425,920/816,156,975.60 - Step 6: Final answer
x = 1,068,656,661.70
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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.