Finding the Fourth Proportional to 409,768,991.28, 614,654,536.68 and 167,431,895.28
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Solution
The fourth proportional to 409,768,991.28, 614,654,536.68 and 167,431,895.28 is: 251,148,271.85
Step by Step Solution
- Step 1: Write the proportion equation
409,768,991.28 : 614,654,536.68 = 167,431,895.28 : x - Step 2: Convert to fraction form
409,768,991.28/614,654,536.68 = 167,431,895.28/x - Step 3: Cross multiply
409,768,991.28x = 614,654,536.68 × 167,431,895.28 - Step 4: Simplify right side
409,768,991.28x = 102,912,774,018,782,672 - Step 5: Solve for x
x = 102,912,774,018,782,672/409,768,991.28 - Step 6: Final answer
x = 251,148,271.85
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.