Finding the Fourth Proportional to 1,296,953,046.19, 1,788,457,441.26 and 1,109,402,191.95
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Solution
The fourth proportional to 1,296,953,046.19, 1,788,457,441.26 and 1,109,402,191.95 is: 1,529,830,714.67
Step by Step Solution
- Step 1: Write the proportion equation
1,296,953,046.19 : 1,788,457,441.26 = 1,109,402,191.95 : x - Step 2: Convert to fraction form
1,296,953,046.19/1,788,457,441.26 = 1,109,402,191.95/x - Step 3: Cross multiply
1,296,953,046.19x = 1,788,457,441.26 × 1,109,402,191.95 - Step 4: Simplify right side
1,296,953,046.19x = 1,984,118,605,543,132,416 - Step 5: Solve for x
x = 1,984,118,605,543,132,416/1,296,953,046.19 - Step 6: Final answer
x = 1,529,830,714.67
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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.