Finding the Fourth Proportional to 1,042,472,179.18, 1,438,639,700.84 and 613,339,423.53
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Solution
The fourth proportional to 1,042,472,179.18, 1,438,639,700.84 and 613,339,423.53 is: 846,424,933.35
Step by Step Solution
- Step 1: Write the proportion equation
1,042,472,179.18 : 1,438,639,700.84 = 613,339,423.53 : x - Step 2: Convert to fraction form
1,042,472,179.18/1,438,639,700.84 = 613,339,423.53/x - Step 3: Cross multiply
1,042,472,179.18x = 1,438,639,700.84 × 613,339,423.53 - Step 4: Simplify right side
1,042,472,179.18x = 882,374,444,780,577,152 - Step 5: Solve for x
x = 882,374,444,780,577,152/1,042,472,179.18 - Step 6: Final answer
x = 846,424,933.35
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1.5x scale
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.