Finding the Fourth Proportional to 935,629,385.35, 1,291,178,755.46 and 517,948,645.81
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Solution
The fourth proportional to 935,629,385.35, 1,291,178,755.46 and 517,948,645.81 is: 714,774,779.80
Step by Step Solution
- Step 1: Write the proportion equation
935,629,385.35 : 1,291,178,755.46 = 517,948,645.81 : x - Step 2: Convert to fraction form
935,629,385.35/1,291,178,755.46 = 517,948,645.81/x - Step 3: Cross multiply
935,629,385.35x = 1,291,178,755.46 × 517,948,645.81 - Step 4: Simplify right side
935,629,385.35x = 668,764,287,889,148,160 - Step 5: Solve for x
x = 668,764,287,889,148,160/935,629,385.35 - Step 6: Final answer
x = 714,774,779.80
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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.