Finding the Fourth Proportional to 8,671,638,966.96, 11,966,861,773.12 and 4,912,449,534.56
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Solution
The fourth proportional to 8,671,638,966.96, 11,966,861,773.12 and 4,912,449,534.56 is: 6,779,180,356.96
Step by Step Solution
- Step 1: Write the proportion equation
8,671,638,966.96 : 11,966,861,773.12 = 4,912,449,534.56 : x - Step 2: Convert to fraction form
8,671,638,966.96/11,966,861,773.12 = 4,912,449,534.56/x - Step 3: Cross multiply
8,671,638,966.96x = 11,966,861,773.12 × 4,912,449,534.56 - Step 4: Simplify right side
8,671,638,966.96x = 58,786,604,547,507,208,192 - Step 5: Solve for x
x = 58,786,604,547,507,208,192/8,671,638,966.96 - Step 6: Final answer
x = 6,779,180,356.96
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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.