Finding the Fourth Proportional to 659,437,330.10, 989,299,462.35 and 199,363,486.10
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Solution
The fourth proportional to 659,437,330.10, 989,299,462.35 and 199,363,486.10 is: 299,088,602.67
Step by Step Solution
- Step 1: Write the proportion equation
659,437,330.10 : 989,299,462.35 = 199,363,486.10 : x - Step 2: Convert to fraction form
659,437,330.10/989,299,462.35 = 199,363,486.10/x - Step 3: Cross multiply
659,437,330.10x = 989,299,462.35 × 199,363,486.10 - Step 4: Simplify right side
659,437,330.10x = 197,230,189,610,951,712 - Step 5: Solve for x
x = 197,230,189,610,951,712/659,437,330.10 - Step 6: Final answer
x = 299,088,602.67
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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.