Finding the Fourth Proportional to 257,601,584.96, 386,133,569.76 and 104,353,421.12
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Solution
The fourth proportional to 257,601,584.96, 386,133,569.76 and 104,353,421.12 is: 156,421,238.71
Step by Step Solution
- Step 1: Write the proportion equation
257,601,584.96 : 386,133,569.76 = 104,353,421.12 : x - Step 2: Convert to fraction form
257,601,584.96/386,133,569.76 = 104,353,421.12/x - Step 3: Cross multiply
257,601,584.96x = 386,133,569.76 × 104,353,421.12 - Step 4: Simplify right side
257,601,584.96x = 40,294,359,013,734,176 - Step 5: Solve for x
x = 40,294,359,013,734,176/257,601,584.96 - Step 6: Final answer
x = 156,421,238.71
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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.