Finding the Fourth Proportional to 156,779,433.68, 235,153,954.64 and 47,605,564.40
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Solution
The fourth proportional to 156,779,433.68, 235,153,954.64 and 47,605,564.40 is: 71,403,732.42
Step by Step Solution
- Step 1: Write the proportion equation
156,779,433.68 : 235,153,954.64 = 47,605,564.40 : x - Step 2: Convert to fraction form
156,779,433.68/235,153,954.64 = 47,605,564.40/x - Step 3: Cross multiply
156,779,433.68x = 235,153,954.64 × 47,605,564.40 - Step 4: Simplify right side
156,779,433.68x = 11,194,636,731,529,198 - Step 5: Solve for x
x = 11,194,636,731,529,198/156,779,433.68 - Step 6: Final answer
x = 71,403,732.42
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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.