Finding the Fourth Proportional to 840,598,312.07, 1,259,803,779.12 and 342,027,795.98
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Solution
The fourth proportional to 840,598,312.07, 1,259,803,779.12 and 342,027,795.98 is: 512,596,687.09
Step by Step Solution
- Step 1: Write the proportion equation
840,598,312.07 : 1,259,803,779.12 = 342,027,795.98 : x - Step 2: Convert to fraction form
840,598,312.07/1,259,803,779.12 = 342,027,795.98/x - Step 3: Cross multiply
840,598,312.07x = 1,259,803,779.12 × 342,027,795.98 - Step 4: Simplify right side
840,598,312.07x = 430,887,909,942,837,824 - Step 5: Solve for x
x = 430,887,909,942,837,824/840,598,312.07 - Step 6: Final answer
x = 512,596,687.09
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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.