Finding the Fourth Proportional to 878,139,023.04, 1,212,103,213.92 and 564,873,243.84
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Solution
The fourth proportional to 878,139,023.04, 1,212,103,213.92 and 564,873,243.84 is: 779,699,633.37
Step by Step Solution
- Step 1: Write the proportion equation
878,139,023.04 : 1,212,103,213.92 = 564,873,243.84 : x - Step 2: Convert to fraction form
878,139,023.04/1,212,103,213.92 = 564,873,243.84/x - Step 3: Cross multiply
878,139,023.04x = 1,212,103,213.92 × 564,873,243.84 - Step 4: Simplify right side
878,139,023.04x = 684,684,674,315,879,936 - Step 5: Solve for x
x = 684,684,674,315,879,936/878,139,023.04 - Step 6: Final answer
x = 779,699,633.37
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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.