Finding the Fourth Proportional to 1,691,565,551.13, 2,539,839,108.29 and 946,041,973.95
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Solution
The fourth proportional to 1,691,565,551.13, 2,539,839,108.29 and 946,041,973.95 is: 1,420,455,980.51
Step by Step Solution
- Step 1: Write the proportion equation
1,691,565,551.13 : 2,539,839,108.29 = 946,041,973.95 : x - Step 2: Convert to fraction form
1,691,565,551.13/2,539,839,108.29 = 946,041,973.95/x - Step 3: Cross multiply
1,691,565,551.13x = 2,539,839,108.29 × 946,041,973.95 - Step 4: Simplify right side
1,691,565,551.13x = 2,402,794,403,522,079,744 - Step 5: Solve for x
x = 2,402,794,403,522,079,744/1,691,565,551.13 - Step 6: Final answer
x = 1,420,455,980.51
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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.