Finding the Fourth Proportional to 291,416,380.68, 437,000,139.53 and 168,679,417.13
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Solution
The fourth proportional to 291,416,380.68, 437,000,139.53 and 168,679,417.13 is: 252,947,101.50
Step by Step Solution
- Step 1: Write the proportion equation
291,416,380.68 : 437,000,139.53 = 168,679,417.13 : x - Step 2: Convert to fraction form
291,416,380.68/437,000,139.53 = 168,679,417.13/x - Step 3: Cross multiply
291,416,380.68x = 437,000,139.53 × 168,679,417.13 - Step 4: Simplify right side
291,416,380.68x = 73,712,928,821,649,072 - Step 5: Solve for x
x = 73,712,928,821,649,072/291,416,380.68 - Step 6: Final answer
x = 252,947,101.50
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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.