Finding the Fourth Proportional to 628,686,109.52, 943,170,534.12 and 191,950,257.68
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Solution
The fourth proportional to 628,686,109.52, 943,170,534.12 and 191,950,257.68 is: 287,968,549.52
Step by Step Solution
- Step 1: Write the proportion equation
628,686,109.52 : 943,170,534.12 = 191,950,257.68 : x - Step 2: Convert to fraction form
628,686,109.52/943,170,534.12 = 191,950,257.68/x - Step 3: Cross multiply
628,686,109.52x = 943,170,534.12 × 191,950,257.68 - Step 4: Simplify right side
628,686,109.52x = 181,041,827,060,517,248 - Step 5: Solve for x
x = 181,041,827,060,517,248/628,686,109.52 - Step 6: Final answer
x = 287,968,549.52
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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.