Finding the Fourth Proportional to 1,035,572,313.20, 1,553,358,469.80 and 629,213,068.40
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Solution
The fourth proportional to 1,035,572,313.20, 1,553,358,469.80 and 629,213,068.40 is: 943,819,602.60
Step by Step Solution
- Step 1: Write the proportion equation
1,035,572,313.20 : 1,553,358,469.80 = 629,213,068.40 : x - Step 2: Convert to fraction form
1,035,572,313.20/1,553,358,469.80 = 629,213,068.40/x - Step 3: Cross multiply
1,035,572,313.20x = 1,553,358,469.80 × 629,213,068.40 - Step 4: Simplify right side
1,035,572,313.20x = 977,393,449,107,986,688 - Step 5: Solve for x
x = 977,393,449,107,986,688/1,035,572,313.20 - Step 6: Final answer
x = 943,819,602.60
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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.