Finding the Fourth Proportional to 773,657,351.58, 1,067,637,130.44 and 421,229,299.98
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Solution
The fourth proportional to 773,657,351.58, 1,067,637,130.44 and 421,229,299.98 is: 581,290,981.30
Step by Step Solution
- Step 1: Write the proportion equation
773,657,351.58 : 1,067,637,130.44 = 421,229,299.98 : x - Step 2: Convert to fraction form
773,657,351.58/1,067,637,130.44 = 421,229,299.98/x - Step 3: Cross multiply
773,657,351.58x = 1,067,637,130.44 × 421,229,299.98 - Step 4: Simplify right side
773,657,351.58x = 449,720,041,087,897,216 - Step 5: Solve for x
x = 449,720,041,087,897,216/773,657,351.58 - Step 6: Final answer
x = 581,290,981.30
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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.