Finding the Fourth Proportional to 467,776,983.15, 645,532,249.14 and 258,933,125.79
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Solution
The fourth proportional to 467,776,983.15, 645,532,249.14 and 258,933,125.79 is: 357,327,720.45
Step by Step Solution
- Step 1: Write the proportion equation
467,776,983.15 : 645,532,249.14 = 258,933,125.79 : x - Step 2: Convert to fraction form
467,776,983.15/645,532,249.14 = 258,933,125.79/x - Step 3: Cross multiply
467,776,983.15x = 645,532,249.14 × 258,933,125.79 - Step 4: Simplify right side
467,776,983.15x = 167,149,683,068,069,216 - Step 5: Solve for x
x = 167,149,683,068,069,216/467,776,983.15 - Step 6: Final answer
x = 357,327,720.45
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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.