Finding the Fourth Proportional to 156,779,437.68, 235,153,960.64 and 47,605,568.40
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Solution
The fourth proportional to 156,779,437.68, 235,153,960.64 and 47,605,568.40 is: 71,403,738.42
Step by Step Solution
- Step 1: Write the proportion equation
156,779,437.68 : 235,153,960.64 = 47,605,568.40 : x - Step 2: Convert to fraction form
156,779,437.68/235,153,960.64 = 47,605,568.40/x - Step 3: Cross multiply
156,779,437.68x = 235,153,960.64 × 47,605,568.40 - Step 4: Simplify right side
156,779,437.68x = 11,194,637,957,778,426 - Step 5: Solve for x
x = 11,194,637,957,778,426/156,779,437.68 - Step 6: Final answer
x = 71,403,738.42
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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.