Finding the Fourth Proportional to 1,078,643,873.37, 1,488,104,998.70 and 626,444,859.99
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Solution
The fourth proportional to 1,078,643,873.37, 1,488,104,998.70 and 626,444,859.99 is: 864,247,923.32
Step by Step Solution
- Step 1: Write the proportion equation
1,078,643,873.37 : 1,488,104,998.70 = 626,444,859.99 : x - Step 2: Convert to fraction form
1,078,643,873.37/1,488,104,998.70 = 626,444,859.99/x - Step 3: Cross multiply
1,078,643,873.37x = 1,488,104,998.70 × 626,444,859.99 - Step 4: Simplify right side
1,078,643,873.37x = 932,215,727,557,908,352 - Step 5: Solve for x
x = 932,215,727,557,908,352/1,078,643,873.37 - Step 6: Final answer
x = 864,247,923.32
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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.